416 ? GEOLOGY OF OHIO. 
Maumee, or in situations where the surface drainage has carried the 
black soil into the valleys. In the vicinity of the Belmore Ridge it con- 
stitutes a very fine, sandy loam. There are also a few patches of fine, 
yellow, lacustrine sand, which form a very light and easily exhaustible 
soil. 
The following varieties of trees are characteristic of the county: 
Quercuspalilba = Wikhitel Okie. vanccincsuecesc lee aseeaeelee seco ac ener eee eae ee My 
DENG VEAUIS) aie) BADIA HOVER BLSKEXU OY aadbeonas. Bdocsaco codgobonecabNGe ubeiobicuadandeS Bdoobe SodouODE Ait. 
Ulmus Americana—E]m (pl. Clayt.) ............ PNA eA HAMAR oN Willd. 
Quercus) Chestnut-leaveds@alemnn. ener eran ened 
iPlatanusyoccidentalig=—Sycaimonere see cence ee eee L, 
Ropulusimoniliteras) Cottomwoodieecssscdeest teen: “sleep suatueemouanitamas Ait. 
JES SOOIS) JAAS TAN CEO WN) TOMheS), JAISTO) ctieo Godboono8 sooocéaen boabeo coonee concen Seeacecs L. 
@uercushmacrocarpas bun, Oalkessasncse sce cineeceeee neonate ee eee Michx. 
Juglansinigra black Wralliiteessecacssetteneneeeeeeecnecer te sae neee nee L. 
Uiniedlvalsh (GipaVe) eo BIBIAKE) BATU Ty scrnyay beso olionod6 Hdd0D Loe NoOSHGOGbLG0000H ohoden baNceA L. 
Hraximilsisam bucitolia——B lackwAlsings ke seseswscceres see teen a aac eaten Tene Lam. 
IA Cemsaccharinum=— ou oary Vial eeackecuayeeacte niet a ceee inert noeen oneeaenae Wang. 
hm QUCTCUS TU Pras edu Oaks mle ieaeccn su aonacn Gainers cee en eac ten erent L. 
Acenrubrum—SolteMlaple) scccjscouoncacceetuee ern ea aes o TER enone L. 
Asculus elabra— Buckeye saccjcssess.susacnan ccawssesc ee aecaaeeecanenaReiee anaes Willd. 
Miia vAT Rican a. DASSWOOG Wencelestseneeciscoctalscuete ce nactocbecsc eae caceneeareniete ley 
Asimina trilO bars Paw Paws fosscccceswsccciscecbeisussicteatiare suite cenaieclsiacer aemeenes Dunal. 
Ropulus tremulowdes = lremillineeAspetirencuel aisha sett dantese tt tet Michx. 
SEM Ube eB fea gh \ WA KO) fuonnosrcbades hoptoncd Bopp pbccH IOUBEoD05 Boob omaAL oq0060000 bocadcdad 000 Marsh. 
Gymnocladus Canadensis—Kentucky Coffee Tree............... sss. seceee Lam. 
Prunmusiserouna—— black Ghentyscies weccscnsecans demas eieseccecseeeets Ehr. 
Quercus palustris—Pin Oalenrrc: ca sieiieldtinnus nmanesuosldenicansomenseseneeneemenateateees DuRoi. 
Morus) =-Miuil berry \s.2.cc5 ccscssesdecsencososnnns cosecsocuscecheeccleastnescelacowstore 
Prunus (i) Wild PMU eo iiec os eelceosca te cote eo secaeeseesoneieetse een cnereacient 
Huony mus atropunpureus——W anor... .\srso.-ecleccneessy cestcuneleccoeceecansest Jacqs. 
Warya) alba —-shagbanrksHickonyu.icqsssasetensaceueeaelesentennssseseteeters Nutt. 
Viburnum opulus-——aighbushCranbertynceednsiivecccesedeesteseseeesnes L. 
Hraxanus quadranculata=— blew As laisse tessccceniesscasscer starr st tesee eee eae Michx. 
Gleditschia triacanthos—Hodney Locust .............. secs coesesseceee seeseece L. 
GEOLOGICAL STRUCTURE. 
The details of the geology of Henry county are not well known. The 
rock exposures are confined to the bed and banks of the Maumee. It is 
only known that the formations of the Devonian make their way across 
the county from the north-east to the south-west, the south-eastern por- 
tion being taken up with the Waterlime. The exposures that occur in 
the Maumee are of the black slate or of the Hamilton, and are sufficient 
to fix pretty certainly the points of crossing of the strikes of those forma- 
