Comparison of pollen spectra from bogs of Early and Late Wisconsin glaciation in Indiana

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1 Bl Uvy Bol S Volm 5 Bl Uvy Bol S Al 6 Como o oll om bog o Ely L Wo glo I Dyo A. Swk Bl Uvy Follow h ol wok : h://glommo.bl./bol Th Bl Uvy Bol S jol w blh by h Boy Dm o Bl Uvy Iol I om 1929 o Th jol ogl mly o l ology xoomy mobology. Romm Co Swk Dyo A. (1941) "Como o oll om bog o Ely L Wo glo I" Bl Uvy Bol S: Vol. 5 Al 6. Avlbl : h://glommo.bl./bol/vol5/1/6 Th Al bogh o yo o o by Dgl Bl Uvy. I h b o lo Bl Uvy Bol S by hoz o o Dgl Bl Uvy. Fo mo omo l o om@bl..

2 l B l l l l v I h v l l B A I C S w l h B F o b w l h B l D. g h b - T g l m F C l g D l l M lc b h o o b D D g l k k F F D D C S l l k b v - B o h b y h bl w j o ls B o y v U l B h T o o m I l o I y v U l o m D y l y o m g o j o h T 4. bl o h T. l o gy b o o m y m o xo l o gy o m o y l o l y o h y l w h o. o g v h o g g m m o o v o o l y b y j o h T b o. C. y R b y o o o y o h m o g o l o g b o m h o o b o 9. l h g h o b l l o j o h T. g x - B o y v U l h o bl j o h o h y g h o m og v m D y - o w y B o g 5 m 7 g l o h o o w g h v o y h. o h. o h o o o b y m bl o y m m D y B o h T - o o y h. l - N l W l o g o l y l o g o o zg P o E. h o J - o H T. o y S o F A m h o o - o o W x R l m P v M C. m b o A o M o h o o m m g m o h S o m. l o P J - l o gy o y b o o l h o o o v h o m w xo R l y A. m l W l y y o K y F l B W. h. gw D b R o C o y M S o m C o M b H m m b. y S o h o T l H zg P o y P y o S o l o g o E h o P v g l B zg P o A m. o bl g l y m o o q R - o ls B o y v U l B h o m b o x l o gy o /. l w. w w o m o o m F o. b g o

$COMPARISON OF POLLEN SPECTRA FROM BOGS OF EARLY AND LATE \VISCONSIN GLACIATION IN INDIANA By DAYTON A. SWICKARD A wll kow I w wh h h o h Illo boh h Ely L "Wo h.$

3 COMPARISON OF POLLEN SPECTRA FROM BOGS OF EARLY AND LATE \VISCONSIN GLACIATION IN INDIANA By DAYTON A. SWICKARD A wll kow I w wh h h o h Illo boh h Ely L "Wo h. Th Illo gl omg l h h "Wo gl x h lg"h o h log boh h w bo lvg lg oh-l oo gl. Th gl h ohmo bol'y Moo oy wh ohmo lm o h w Poy CO'll:y. o h Clh: oy. Th Illo w ov by h Ely Wo gl who oh bo m gl l om Vmllo oy o h w oh o Fkl oy o h wh OLlhmo xo hg h o Jg oy h ohl oo o h. Th L Wo o x o bo o oh. I oh lm bg Bo oy o h w mk gl l ohw h Ely \yo o Rolh oy o h. Th l wo gll o w mo v h hy l v kl hol whh obbly oo bm lk by l llg Ll o bog. S m h l h o h Ely Wo o o obl vy lk oh o h L Wo bo oly o o mog o mh 43 b o 0 h x. Two bog w l h y YOl1vll bog Mogomy oy wh h bo o h Ely Vv'o oy Mll Ck bog Lo oy lo wh h oy o h L Wo glo. Yol1vll bog 8 ml w o ml oh o Cwovll h Pvll o o h o Wllm Ryo. Th Mll Ck bog o ml oh o Mll Ck. Th bo oy o h Mhg-I l. I lo wll h Noh Mo Lk Rgo o g owh o whh h l o h mg o h Mo. Th o o xv gvl l m by g o g h oo o h Klmzoo Mo (Mlo 6). Th g o h 67

oy hly hogh h bo vlly o Cook Mll Ck. THE STATUS OF THE BOGS Yovll bog x bog h hvg ol ogh o m lvo. I ov oxmly 20-25 wh l o oxly 1200 by 800 whh ll q w g h y o.

4 oy hly hogh h bo vlly o Cook Mll Ck. THE STATUS OF THE BOGS Yovll bog x bog h hvg ol ogh o m lvo. I ov oxmly wh l o oxly 1200 by 800 whh ll q w g h y o. Th oo og h l h ll b b by lvo by whg o h og ol by gvl l whh h b bl ov. Th w bl hgh hol g' o h g bog obvo how h w wh o oo o h o. Two bog w m h l o h bog g bog "A" "B." Bog "A" h o h wo bog o mlo o h o 24. Bog "B" m om 200 om"a" w oly 15. Th om h bog "A" w o ly. Th Yovll bog 1S o h yc'l klhol y. I l h wh gg gvl hll o h hy. :Mll Ck bog mo yohl g; h ol vy o w g h y. Th bog mbl mo ly ol v b whc'h h o lk. Th lgh obbly 9 o 10 ml. Followg' oxmly h o o h ol v b w h h o oh myg o Mll Ck. Th llg w m wh w hogh o b h. Oly o bog w m h h h w 59. Th llg ook l h oh hl o h bog bo o ml oh o 11'1 ll Ck. A ho oh o h ll l bo whh h ol v obbly m o. Th hl o h o h l mo hllow h h hl o h w b h hl h mll w whh h o y ll ov by w. Th bo m o' o hll whh hly om h g o h bog. PRESENT DAY VEGETATION Th y vgo o Mll Ck bog yl o vlog bog. Th bog l g mow whl h 68

5 gvl g og wh Q vl Q lb. A(' 1"b11'I lo w o o oly o h gvl g b h boggy lowl wll. I woo oh o h bog b o Lm'L- 11' w o ogh wh vlll o P obl'l. Pl yl o boggy ol w: Po(''ll o Solgo oho S -ll P1'o l1"l: b B o('ll'l(': -1'11.11w- Lobh kl1- OS'l11 l11'11o Cy-m g- Rh v'x Vm ovmbol'1'i OCOCCWJ1'/" Pl' loll Om gl bl C l'o Solgo 11:lgl P m'g1w Pl yl o wm bog hogho h U S o h w: C blb CC~l m./ L'jJh-/.lU'I11" Plo'.'/'I'~ o Ro l J'v1 111.'o O;>:yoz.: :g SgW lol- NU>h: v11.'i'i1" SymJo o Clh l Pl{)1' C Tyh l-ol SI' v Do vl((./-. Pl mo o o gowg h ol l go w lo o: Aml g Bow vg:w Tgloh'/1 l.l T. 111.'m. Noh l hvg h oh lm h oh I lk go o h bog w: Cm1-Ll~I(/. 'ohmol B1'M Iwl-m Bl I B. U:11'1:l Rhm l:ol 1111h-mm o-o I S lgl1 o Cl1'. lbo bl1'/._ No l y w m o h l h Yovll b l vgo lmo ly lm by gl. I m b o howv h h oly x ml om h P Hll mo o I b o lc' olo o h oh l : P ob TJ."". Tg 11S C.lh'l omb Co 'goo Th w l by F Pozg (2). METHODS Th ml w k mlly o ho voly oll o oh bog h m ( ). Sml w oll o oo vl. g-g wh h ly x h Yovll bog wh o-hl oo lvl w k bw h h o-oo lvl. Th hq h lbooy w h gg by Gl (3) obbly b b h lohol mho. A lll o w l mll bk: o h ml w bo C' o 951<' lo 69

$Th w lly o Yovll bog wh wk o mo w q bo h g bg o how y olo. Poll o w m wh h o bol moo q wh 43X objv 15X ol. To mlz h obv wh h oll g o h ll o S (18) \Voho (22) w.$

6 hl. Th om o o v o o 1% qo olo o g vol w h ml w o vl m. I w o g h ml om h Mll Ck bog h h low h q mo. A Smh (17) h lky o h low lvl q mh mo o mk wll l. I w o boh bog h h l w llow o o w y h oll bm mo lly. Th w lly o Yovll bog wh wk o mo w q bo h g bg o how y olo. Poll o w m wh h o bol moo q wh 43X objv 15X ol. To mlz h obv wh h oll g o h ll o S (18) \Voho (22) w. Th w lo vlbl -' m l o kow oll g whh ol b om wh h g om h bog. Th oll qy w b o o o 200 g oo-lvl. Foo-lvl b om h m o h Mll Ck bog b h w o l h lvl h w mobl o mk ollo. Th by "w" h gh. A h o-hl oo lvl h bog oly 100 g w o b o h low mb o. OBSERVATIONS Mll Ck Bog Th oll m om h Mll Ck bog w o o b yl o bog obv by oh wok I. Th low lvl how om by Ab P. I h 59-oo lvl wll h 55-oo lvl Ab h g o P w by 38.5%. Two oh g w h low lvl vz. Q P boh wh low g. Ab how g o log mo h 51-oo lvl wh g o o 18.5 whl P o o Q h b om h low lvl wh h Ab P h 51-oo lvl g lv mo. I h x lvl howv Ab g mo hvg g o 28.5 o 25 o Q. P 70

7 71

8 lo g wh o 19%. A h 49-oo lvl Q g mo wh g o 45. Ab ol o 2 % v how y mo h oolvl g ly h 33-oo lvl. Q w ow h mo g o h m ol o b o h 46-oo lvl. Soy mo w P whh h ow g ov Ab o o l l omlly h 13-oo lvl. A h 46-oo lvl h w v hg h m. P whh h o oo o mo mo ow how h om 4.5% h 47-oo lvl o omg g o 60. Th w h oly lvl whh P om; b h x wo oo-lvl ( ) h g w hgh ogh o om Q P oo. A h om o P h 46-oo lvl Q bm h mo mo g o h m. I hl om om h 43-oo lvl o o h wh g whh v o blow No Lx g w o h low 3 oo-lvl. I h 56-oo lvl wh o o 0.5%. Fom h o h h vo lvl. Th hgh g h w 6. Tg h h l o o ll g.; w oly 4 lvl vy low g. All oh g w by mo g; Slx h 5I-oo lvl wh g o 18.5 h hgh lo o h m. I lly h 21-oo lvl. Bl m h 52-oo lvl low g o h 3- oo lvl. Oh bolv g Al A Ulm w o 111 mll g. A m h 31-oo lvl w l h 2-oo lvl. Th g o w v vy hgh h hgh bg 5% h 22-oo lvl. Ulm w b v h g o. I m h 54-oo lvl hgh g w 6.5 h IS-oo lvl. Cy Jgl Lqmb Tl mll g vyg lvl bw h 46-oo lvl h. 72

Yovll Bog I h Yovl1 bog Ab P w om h low lvl h :Ml1 Ck bog. Th om o h wo o o mh log o o m h y bog y lyz h Ely Wo glo oy. Ab bow om oly h 24-oo lvl wh g o 56

9 Yovll Bog I h Yovl1 bog Ab P w om h low lvl h :Ml1 Ck bog. Th om o h wo o o mh log o o m h y bog y lyz h Ely Wo glo oy. Ab bow om oly h 24-oo lvl wh g o Fom h lvl o h 19-oo lvl P w o-om wh Ab b h 19-oo lvl P bm h om m o o h 11- oo lvl. Ab howv o h 111 o l h 5-00 lvl. Th obbly w o o h o Ab bog h I. P w lmo h m o h bog; w o o h 0.5-oo lvl hvg b b h 2-oo lvl. Th hgh g h w 60 boh h oo lvl. P w h oly g whh w hogh h m. Howll (5) Rh (13) o h o b lo h Kokomo Ob bog. P v h om g hgh g bg 13.5 h oo lvl. Lx w h 24-oo l"vl b o l h 20-oo lvl. Fom h lvl o h low g. Th bolv g Q. Slx Bl w ll low g h boom oo-lvl. Q h m o b 20-oo lvl h l h 16 oo lvl. I h II-oo lvl Q g ool m om o h lvl. Th hgh g h by Q w 85 h 2-oo lvl. Slx w ' h low h lvl b lk Q o g g l h 13-oo lvl whh m mll g l ly h 0.5-oo lvl. Lk Q Slx. Bl b 23-oo lvl b h 11-oo lvl. A h 8-oo lvl bm lly om hg o o 42.5% lmo qllg Q h g. I h x lvl o o 13% lly h 0.5-oo lvl. A w oly h wo oo-lvl hg 11 % h 0.5-oo lvl b lg h ly. Cy o l h 5-oo lvl om whh m mll o o h 73

$Lqmb l wh ho b o y g b mm h o h oll g g ly wh blh o o o oh oll 0 hbo o wooy h b o whh mgh b mk o Lqmb. DISCUSSION Th Ely \-'/o Gll D A lk o o h mo ho lv o ll oogh.$

10 . Coyl Al w boh o h O.S-oo lvl wh v hg mo h 7%. ]gl w o h 4-oo lvl lg o h 0.5-oo lvl b v hvg hgh g. Tl Lqmb w o oly o h m. Lqmb l wh ho b o y g b mm h o h oll g g ly wh blh o o o oh oll 0 hbo o wooy h b o whh mgh b mk o Lqmb. DISCUSSION Th Ely \-'/o Gll D A lk o o h mo ho lv o ll oogh. Plly ll l ool g o oy lk b by l w-blow o mlo o l ml m. I h b m h bo o-oh o I ll o h b o by lk gologl m (lvilo 8). Th lk om g h Illo gll ll x o hy hv b obl by h Ely \Vo gl. All o h l lk o bog I o o h Ely o L 'Wo glo. G hg hv k l h oo o h lk I h w l. Aog o Mlo (8) h l y y hv w h o o l lk by l o-hl obbly o l ol wh l g. Th lk o Ely vvo ll lo h lk hv hg o m hog. Th ol o h bog o h Ely Wo glo h ol o h x h m lvo kg l o. Th "Wo glo I ov<] oxmly q. ml h mg m by w ly lob h whh bm h o h ohw. Lv Tylo (7) h o o h lobo o h I go h hy w lol loym ow mjo vlly. Mlo (8) h h ol o o h L Wo I o 1o111 Ly o T H; h mk by lg m h h Wbh v lo by obl o o h gll l l. 74

$All h bog w q ml o oll o h low lv; ll how o om by Ab P. Th bhvo o P Ab h YovH bog w q om h o oh bog h Ely \Vo glo. I o oh o Ab P o log hy h. P w o h I-oo lv! Ab o h 5-oo lvl.$

11 I h o lo h Yovll bog l h y. Th bog lyz by Rh (17) W oy lo wh h go. I oh o o h Ely Wo boy bog hv b lyz by Howll (6) How oy Oo (12) Mo oy Pym (16) Hmlo oy B (1) Mo oy. All h bog w q ml o oll o h low lv; ll how o om by Ab P. Th bhvo o P Ab h YovH bog w q om h o oh bog h Ely \Vo glo. I o oh o Ab P o log hy h. P w o h I-oo lv! Ab o h 5-oo lvl. Ab w om h boom lvl b lo om h x lvl. Th om w h k ov by P l o h II-oo lvl wh gv wy o Q. I h Ob bog Bo' Swm Kokomo bog P h ml o. Th omg g o o o P w bo h m ll h bog b h o o om (8-oo lvl) w log h Yovll bog. Th v o wll x bol o h low lvl o h Yovll bog g wh h l o oh og o S (19) ool-hm lm. I o o my oo-lvl h o xl. A obl xlo h o gv by Howll (6) h h ool g w om h oh l h o h ohw hogh h Wbh v b mkg l oo.. ool ol o h oo o P Ab o mh log o o m h oh om whh h h. I oh wo! vly o vobl lol olo mkg obl o h o l mo-lm b vog bolv b wh lol mo-lm vog h bol. Th m go o by F Pozg (2) h v oy wll-vlo oloy o oh l. g. P. l'ob Tx m Tg. Co go D:'vU lo Glh omb P Hll whh oly x ml o h oh o h bg. Th o P o h o oo-lvl o h bog h h l o m w bo l Mogomy oy. 75

12 Lx w Yovll bog mll g vl hogho h m. Lx oll vy gl v h lgh my bk h x mkg h oll ogzbl. Th obbly h o why how h low g v hogh Lx my hv h g g o h o oy. YovlJ bog h o o o Tg. I h oh bog w o {o-lvl hogho h m wh low g. Tg oll o {o go wh h oll bom w o b o o ly m o-o h o omlx. I lmo h Tg hol hv b h o omlx o h go o v oy h l oloy P Hll whh oly w ml om h bog. Th g o Q h YovlJ bog w hgh h y o h oh bog om h Ely Wo go. I h Yovll bog w low gg om mh low h h oh bog o h log o P Ab b o g ool om ll oh bog. I l o y whh h log Ab-P om o ly hg molm o o om lly vobl lol o molm ool. Ag my m h hllow lk by h bog llg w oml bo h l o h o ol b l h ool o. Th Ob Kokomo Cby Fox P Bo' Swm bog ll hv Q h lvl b lk Yovll hy h ;\ o-om o wh h omo lvl. Th l o-om o h oh bog w h Cy o A. I h Yovll bog A bm oom h D.S-oo lvl. Q howv w ll h om g h ooll h II-oo lvl. Th m gg vy low hg om ool-mo lm by h P Ab om o wm-y lm by h Q lmx. Th o A h l wo oo-lvl obbly hg om wm-y lm o wm-mo lm. Th g o A my m mo h h m A oll o o h b Q o mll g' o h g my b ombl o lg g o Q. 76

13 Bo' wm h oly bog h Ely Wo oy o I whh h lm A-Q lmx. Mo v o h hg o wm lm w h Bl h 8-oo lvl (42.5%) whh o 2 oo-lvl. I h obl o h h o o o Yovll bog w: Ab o Ab-P o P o Q o Q-A. Th lm hg bg om ool-mo o wm-y o wm-mo. Th L Wo Gll Po Th L Wo gll v w o o ohw; h w o xv h ly v. Th bog lk o h mo go mh yog h ho o h ly. Th bog ll h omv my o whh hv lmo ll b y vy w y o. Th m l' ; h Wo gl m l h h om. Cll (24) bg h m o h o o h Ng gog o S. Ahoy' Fll m h h m o h Wo h w bw y.' Th wol b o h m g whh h om h oh lm o h Ng gog. Aog o Mll' (10) m h q bo y om oh boy (bo Logo o I) o h Ng gog. Av (23) m h bgg o h bw y. Th qo h qly b whh o o obl o ll bk hogh h g h bog m. Pozg (14) h Dhowk m 200 y o h mlo o o oo o ; So Obo m 600 o 1200 y oo o S bo 300 y o h ool Pozg (14) lo h h vg h o bog I bo 35 b o S' m w wol hv 10500; b o So Obo wol b o y h l omo olg mo wh Cll h Ng gog o. I m b k m howv J h h obly o lg y h mo. Th whwl o h oh w I w by h oo o h o oghly o ml mo. I ohw I h mo w bl by h Lk Mhg lob. I h oh o h h 77

mo ym hmoy wh h M E lob whl oh l I h mo oom o h oo o h lo Sgw lob. Th oly gm o h ym kg wh h lobo o h. Mlo (9) o h omo o. hl o moy v o h mg. S h v o h gll h my m lk l by h vy hv b ll by wh o mlo o l m.

14 mo ym hmoy wh h M E lob whl oh l I h mo oom o h oo o h lo Sgw lob. Th oly gm o h ym kg wh h lobo o h. Mlo (9) o h omo o. hl o moy v o h mg. S h v o h gll h my m lk l by h vy hv b ll by wh o mlo o l m. My lg b hv bom mll b ll lk. Th o h mll hllow b ow mk by lvl oo o blk h. I h go lol h Mll Ck bog wh mlo o o h o 59 o o h bog o I y lyz. Ab w om h low 2 o 3 oo-lvl o Mll Ck bog omg P-Ab lmx l. Mo (11) o Alo bog vy ho om by Ab wh Q P g ly h m. I omo w o h ll P-A b o vy log bo 2 o 3 bo P m ool. Th m who ob h h ool-mo lm w bgg o h o ool-y oo. A h gl bg o ml h g w w by h \Vbh Kkk vlly h w w wy h oo bm. Th vly o wh h oo o P. Howv h lm ll 111 hv b ool o oh P oy om ool-y hb. \Vv Clm (21) y h Lx bom h bol o o oy. Th oll how h Lx hl ml oo h ly Po Plo o. Pozg Wlo (13) h Lx o oy om l olo h o o g howg bly o j l o o ov w hogh P Ab o o h oh o o. I h Mll Ck bog Q v h om wh oh g. I h Lkvll Ro Lk Loo Lk Alo Lk Co bog Q w o h lvl wh Cy. I Wo lk h o w A Q. To lk w vy ml o Mll Ck bog hvg oly Q mjo b lvl. I j L1 bl o m h h lm hg w mo o l 78

$om ll obbly om ool-mo o ool-y o wm-y o mo wm-mo lm. Pozg \Vlo (13) m h h w h h 'Wo To lk go. Th lo bw P Q h oo o h wo w by lol ool. Ch h h o o o oy.$

15 om ll obbly om ool-mo o ool-y o wm-y o mo wm-mo lm. Pozg \Vlo (13) m h h w h h 'Wo To lk go. Th lo bw P Q h oo o h wo w by lol ool. Ch h h o o o oy. Pozg F (IS) hv how h l I ob-g lo o ov w h om oh-g lo. hv Fg-A lmx whl h oo lo w ov wh Q o Qll Cy. Sh hom m b o wh lg h o gll o. Bl Slx w Mll Ck bog mll g whh ol wh oo Wo To lk. whl bog obv by Mo (II) Hm (4) hy w lghly hgh. Pozg \Nlo gg h h low o o Bl Slx my b o h h h h h oll ly h oz oo o h lk wol wh h oo o h oll o h m o vo. Bj~I(J. l H. U'I1'll o gowg h bog oy. Th oh gowg h oh lm I. Bl oll w o h 52-oo lvl; my b m h h w h m wh h m o wh w h h oh lm whh oy h oh lm. Como o Yovll Mll Ck Bog Th mo~ og bw h Yovlk Mll Ck bog. h. h xo o h P Ab lmx. A Yovll h o"ol hy PC Ab o o m wh bo wo-h o h m h l11l whl h j\.jll Ck bog w wh bo o-h o h m h ml. Th bog ol h P-Ab lmx mo wh hog h hol h lo oh Mhg. o h l. Pozg- Wlo (13) h bog Mhg o h P Ab x h m o vy hgh lvl g. Th o h x Yovll bog my b oo o h o o Alo (Mo II). ;9

16 Yovll bog- q hllow obl h bm ll bo h oml oll m o h ol b o. Th oo vy lkly h g h oy by vlz m mgh hv lm h o-mo ly. Sh gmo o xlo o oh h m lly h bhvo o A omg o ly h O.S-oo lvl. Th A-Q lmx my hv b mo b my o b o h m ow. Th Mll Ck bog h low lvl how yl Ab F lmx o ho o h om w lo v o b g. P ly q ol j h Mll Ck bog h h YovlJ bog. P h JVIll Ck bog m o 2.5 oo-lvl ogh o blh om o l o om og o-om wh Q. I oh bog o h L vvo glo go how bl 1 P m ml h olg oo-lvl. TABLE I Foo-lvl wh P mo g L Wo bog. Nm o bog o lk Nmb o oo lvl wh P ll mo g Loo Lk Bog 3 Alo Bog 2 Wo Lk 2 To Lk 2 Lkvll Bog 1 oo Ro Lk Bog o Mll Ck Bog 2.5 Lk Co Bog 5-7 *Ml Sg Bog 2 "C Lk Bog 2-4 *Ivg by Hok (5). I omo wh bog o h ly Wo glo w o h o o Ely Wo glo how h P. I h bog P oly mo g o o lvl. I blv h h Ely \Vo go h lm hg w ool-mo g ly o wm-y. I h L Wo go h oh h w ol hg. Th P om how h mg h h w m whh ool-y lm x- 80

$TABLE II P o P Vo S L Wo Bog Dlh o Dog Foo lvl.1 whh P. I\'m(' o og ll F.$

17 . Th. mb o oo-lvl o h vg lm v wh h bog obbly g o h whh oo o o l by lol h o. Th oh g vgol bhvo o Ely L Wo glo. P w glly o mh hgh oo-lvl h L Wo bog h h Ely Wo bog. Tbl II how h bw h wo. TABLE II P o P Vo S L Wo Bog Dlh o Dog Foo lvl.1 whh P. I\'m(' o og ll F.. Loo Lk Bog 41 2 Alo Bog 23 2 Wo Lk 33 o To Lk S9 3 Lkvll Bog 30 o Ro Lk Bog 32 o Mll Ck Bog Lk Co Bog *Mhw Bog 29 o Ely Wo Bog Kokomo 32 6 Bo' Swm Fox P Ob 44 4 Cby y ovll *O o bo o L Wo glo. I h IVIhw bog. P w o h o oo-lvl. Th bog lo lo o h bo o L Vlo l Ely Wo glo. Th oly bog h Ely Wo go h h P h o lvl w Yovll. Th l o Yovll Mll Ck bog m h olo h h w o o bw Ely L \Vo glo I. Howv o m o jm olo g h h oml o h mh wok y o b o bo glzo m ly j bl. 81

$Boh bog how o ooll by Ab-P l mx whl h low lvl w bg o. S. ;\b-p o hgil lvl h YolvJl bog h h Mll Ck bog. 6. Mll Ck bog how om by P h 46-oo lvl. 7. P w low g hogho h m YOl1vll. 8.$

18 SUMMARY 1. Th oll om IvJll Ck Yolvll bog. 2. Yovll bog lo Ely Wo glo go Mll Ck bog L Wo go. 3. Th Yolvll bog o h kl hol y whl h Mll Ck bog o h vlly y. 4. Boh bog how o ooll by Ab-P l mx whl h low lvl w bg o. S. ;\b-p o hgil lvl h YolvJl bog h h Mll Ck bog. 6. Mll Ck bog how om by P h 46-oo lvl. 7. P w low g hogho h m YOl1vll. 8. I ll b Ro Lk bog P m om g o o mo oo-lvl ll bog lol wh L \Vo oy b v bog lo Ely Wo oy. 9. P w oly o mh hgh oo-lvl bog o L \Vo oy h bog lo o Ely Wo glo. 10. Q bm om Mll Ck bog h 44-oo lvl m om o h o lvl. 11. A Yovll bog Q om om h I-oo lvl o h b gv wy o QLl-A oo h O.S-oo o lv. 12. So Yovll w: Ab o P-Ab o Q o QlI-A ; llo Mll Ck bog w: Ab o P-Ab o P. o P-Q o Q. 13. Clm hg Yovll my b x oolmo o wm-y o wm-mo; hg Mll Ck w om ool-mo 10 ool-y o wm-y. ACKNOWLEDGEMENT Th w x h hk o D. Joh E. Pozg who v h h o ll ggo3 l g o h m; o D. Ry C. F o ollo l 82

$J. E. POTZGER. Clmx oo h ologl o P ob«to.xhs wl'l: TS1g h P Hll go o I. Bl Uv. Bo. S. 3 :65-83. 1934. 3. GEISLER FI.ORENCE. A w mho o o o o.l oll om. Bl Uv. Bo. S. 3 :141-146. 1935. 4. H.\MP FR\NI(.$

19 o o l h vy o Mll Ck o g g h wok. Th w lo wh o hk mmb o h Boy Dm o Bl Uvy who h bog oo. LITERATURE CTTED 1. BARNETT' JEAN. Poll y o Cby o Emo Mo oy I. BUll Uv. Bo. S. 4 : FRIESNER RAY C. J. E. POTZGER. Clmx oo h ologl o P ob«to.xhs wl'l: TS1g h P Hll go o I. Bl Uv. Bo. S. 3 : GEISLER FI.ORENCE. A w mho o o o o.l oll om. Bl Uv. Bo. S. 3 : H.\MP FR\NI(.-\..\ ol oll y o wo :-'!oh I hog. Bl Uv. Bo. S. 4 : HOlJDEK PAUl. K. Poll om wo I bog. I A. S. Po. 42 : HOWELL J. V. A ol oll y o Kokomo bog How oy I. Bl Uv. Bo. S. 4 : LEVERETT FIlANK FRANK BURSLF-Y TAYLOR. Plo o I Mhg h hoy o h G Lk. U. S. Gol. Sv. Moog. Vol MALOTT C. A. Th hyoghy o I. Hbook o I gology. P. ll Gl hyogh vlom. Hbook o I gology. P MILLER W. J. Ioo o hol gology. D. V No Co Mo BYRON ""'V. A omv oll ly o wo bog wh bo o h L Wo glo I. Bl Uv. Bo. S. 4: OTTO JAMES H. Fo o h oh lm o Ely Wo glo by oll m om Bo' Swm Mo oy I. Bl Uv. Bo. S. 4 : POTZGER J E. IRA T. WILSON. Po Plo o mgo by oll m om h l lk. Am. Ml N. 2S : ] PCYl'ZGER J. E. Poll m m mk. Am. Ml N. 25 : PCYl'ZGER J. E. RAY C. FRISNER. Pl mgo h oh lm o Wo glo I. Am. MI. N. 22 : PRETTYMAN ROBERT L. Fol oll ly o Fox P bog Hmlo oy I. Bl Uv. Bo. S. 4 :

$17. RICHARDS R. R. A oll ol o Ob bog \V oy I. Bll Uv. Bo. S. 4 :128-140. 1938. 18. SEARS PAUL B. Commo ol oll o h E b. Bo. Gz. 87 :95 106. 1930. 19. SEARS PAUL B. Pogll lm Noh Am. Eo1. 13 :1-6. 1932.$

20 17. RICHARDS R. R. A oll ol o Ob bog \V oy I. Bll Uv. Bo. S. 4 : SEARS PAUL B. Commo ol oll o h E b. Bo. Gz. 87 : SEARS PAUL B. Pogll lm Noh Am. Eo1. 13 : SMITH W. Poll m o Lk Co bog C oy I. Bl Uv. Do. S. 4 : WEAVER ]. E. F. E. CLEMENTS. Pl ology. MGw-Hll Book Comy Nw Yok N. Y WODEHOUSE R. P. Poll g. MGw-Hll Book Comy Nw Yok N. Y ANTEVS ERNST. Th l glo. Am. Gol. So. Nw Yok N. Y CULAND E. F. Gology hyl hol. Am Book Comy. Chgo ;.'" 1\4

Forest succession in the southern limits of Early Wisconsin glaciation as indicated by a pollen spectrum from Bacon's swamp, Marion county, Indiana

Forest succession in the southern limits of Early Wisconsin glaciation as indicated by a pollen spectrum from Bacon's swamp, Marion county, Indiana Bl Uvy Bol S Volm 4 Bl Uvy Bol S Al 9 Fo o h oh lm o Ely Wo glo by poll pm om Bo' wmp Mo oy I Jm H. Oo Bl Uvy Follow h ol wok : hp://glommo.bl./bol Th Bl Uvy Bol S jol w pblh by h Boy Dpm o Bl Uvy Ipol