law 49oz. N...~.a.l 't'tlt-J tiAllltttO-UHINt\'ltItAN ltEttS. 11
hi addition to the forms mentioned here we have aome others, tIrm-hiopodes. gzwtmpodes, trilnliites etc. where the material linfore n.~ has been too incomplete for determimilion.
The vertical extent of these forms as known from other regions of North America is t\.~ follows: 7
Ctiu‘ Btm-k Cincin- . Trenton . «.yan Hm.- )mtnlll Halt/ties L‘ulenululus m. yruvi '5 Hm. . . + Calaluecm canal/ensis Rm. -. . . + e + Straplelasmu L'flrui'culnm nu... . . . . . + Mesoh'ypa 4/. discoiam \‘nr. nri‘mlulis BASS E, Oath/110111 angulm'is Cumin .t Ralfnesquiu delloidea Com . + + Ptectumbmiites semen Sow. i + Urthis h-icmmm. Cm. , + Triplesiu _ .. . . , . . . , Rhymhmmh'emu “mun-am,» CA . t 'Ot/Iflnflmu cf. umlrilicnhzm in”. . , , c, Goniucems occiilentale Hm, . Thalesz arata Conn. . . . . r . . i 1, + r 'lans (Bumaxtus?) sp. , Leperditia fabulitex 6.. . . - +
We have here a typical Trenton fauna with a series of the rtmrac- lvristir forms of this division, besides some which are found in ronsulerahle vertical extent, The fauna exhihits an extremely close agreement with that described by SCHUCHERT from Sillemnn‘a Fossil Mount in Baffin Land,‘ which again with its 72 apet'ies lies very close
tn the Galena fauna in Minnesota, Iowa ax 0115' it
Norman Lot-fryer Island was visited by Sir GEORGE NA“ 5 expe-
dition, and in the nu'onnl given by Feilden and De Rance [p.553].
Faristella It'oltliinzuria) reticulum Salter is mentioned from there. According to Scum the lllIIE’IUHB from Norman Lorkyer Island
recurs on the north siile of the l‘rnn'ess Marie Ha
"The same limestone with the some “mils. m'l'lll's again nt thr foot of (lulu: Harrison. where however it is overlain lt_\' think hells of limestone. calcareous sandstone. quartz sandstone. and on [up of :ill a
‘ Un the Inwnr Silurian l'l'rmitonl ninn nl' tixitlin |..nid, l'rxw. l'. Mm
XXII 1900.
