PROCEE DINGS. 2 e 
HELD AT PHILADELPHIA, FOR PROMOTING USEFUL KNOWLEDGE. 
Vou. XVII. ‘May to DEcEMBER, 1877. No. 100. 
TABLE OF CONTENTS. 
PAGE 
PRROOLGH MAELO MEGA PNN oie ee es sie eh dite > Gin cic s nbolets aiacs Gilpin 1 
nated, Meeting, TUNE LD: 60.0 (os0 s~ wae be cme 8 de tien s aleere = 2 
Sted Mec Die soso. oc agate oan wile ee 4 
Stated Meeting, August 17..... Sia (ore at eee e ayrwie'e otal Chace 8 
pialed. Meeting, September 21... 2. je. a darcees wees eccees 10 
PERO PALE CLOT) < \OCLODEIEO) = chain's... otis 'aciete te iaje esc Ya vc cape 13 
MShetem LC ALITUy, —OCLOUGIS Wate 5. '..e.c osc 6 apetwtnln.s.hvevabe sia alage 16 
uted meeting, INOVEMUGT & oo... ea we cele wens cael osu) BOB 
Ieee CN COLL, INOUETEDEP ALO: <. ssc. ees nclewelce ss ccemes Q72 
UTA UIMCHIING = LDGCEMMEN Vaid o s,. seis. oo dldd sass wails cee 274 
rmceeeelyng, December 2)... e eee co awe mee ee tehees OFT 
On the Results of Surveys to Rectify the Railway Levels of North 
Wesver rennsylvania: By Johm EF. Carll. 0. cc dice cess cweees 17 
Upon some New Chlorine Derivatives from Toluol. By Edgar F. 
Sinith ....1.- Nae eee osa,c.0'=-s s 5 babies Waa e opera tesa os ohare 29 
Synopsis of the Cold Blooded Vertebrata procured by Prof. Orton in 
ere A ee OES swig ti api dieinie\s « + 0.0 osiele wav Eas meine ee ee saanieies ad 
On the Brain of Procamelus Occidentalis. By HE. D. Bes (with a 
plate) en eee f aera crae Nee ee Pare ser chee al rate eRe phakcele ns siete: alarnt tothe 49 
On the Vertebrata of the Bone Bed in Eastern linois. ee HE. D. 
Ope Pre nteaercs sic etc a owes RECA APRS Ren Tee « avai paateooere 52 
On some little known Reptiles and Fishes from the Austroriparian 
Scag OS VUE Say) 0 BNO); eee a a, SESS Cae 63 
On Dichlorsalicylic Acid. By Hdgar F. Smith..........cece eee ee 68 
_ [Continued on 4th page of Cover.) 
