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CONTENTS 
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Proceedings of the Ninth Summer Meeting, held at Detroit, Michigan, August 
10, 1897; Herwan Lr Roy Fartrcuinp, Secretary....... De gers pelsieis in eoeats. = 1 
Secsiomeotm LuesdayeeAueusts lO nie bo: sis < ce es ke SE eaeie ie oeale cls nc 
lecitommote welll Osten) mr rer isele oo) aa ie os. recta ae ERSTE Stel Bes il 
Stratigraphy and structure of the Puget Group, Washington [ab- 
Strata ebay ME NIN Ya MVVALLATE Sissy acs c= shez: «Sock as MER en eRe E ale ease c 2 
WoesshastaleanGdacdepOsitiy iva ees UIDD EN. + scene nary eee 6 
Limestones of southeastern Michigan, with their associated sand- 
stone, salt, and gypsum [abstract]; by W. H. Saerzer.......... 10 
Register of the Detroit meeting..... / ob ERMC et rio ls 5's oct sane ge ly 
Great changes of level in Mexico and the interoceanic iegunecnone: by i W. 
SPIO CMR y 3.3/6 AW Ss Go aH eee oI Oe en Ole Vince ee ERs Core lorcet So ener 13 
Clay-veins vertically intersecting Coal Weassoneese by Wess Grusimyer ea toD 
Origin of the gorge of the Whirlpool rapids at Niagara; by F. B. Taynor..... 59 
Geological probabilities as to petroleum; Annual address by the President, 
SSRIONVANRID A ORR ONG eran revel fates ER: sw ada oiSas-cuaramuetatenel Muh toe ereleuotens 85 
Niagara gorge and Saint Danie channel; by ayant UPHAM: So pack setae ae 101 
Drift phenomena of Puget sound ; by Ban EWA" WV LiL ul S -aycicis este Selec eter OIC eae 111 
Nodular granite from Pine lake, Ontario; by F. D. Apams......-..-......... 163 
Topography and history of Jamesville lake, New York; by E. C. QuERmau... 173 
Topography and glacial deposits of Mohawk valley; by A. P. BrigHam...... 183 
Sands and clays of the Ottawa basin; by R. W. Huus.................... se Pilil 
Clastic Huronian rocks of western Ontario; by A. P. Comeman... ... aS iicign MOR 
Syenite-porphyry dikes in the northern Adirondacks; by H. P. Cusnine... . 239 
Weathering of alnoite in Manheim, New York; by C. H. Smyrn, Jr......... 257 
Metamorphism of rocks and rock flowage; by C. R. Van Hisn.............. 269 
Omphalophloios, a new lepidodendroid type; by Davin Wuirn.............. 329 
Cretaceous series of the west coast of Greenland ; by Davin Wairnand CHARLEs 
SS GIEUULG EVE RAL eI eee Ia “va! c.g Steuededs mmm aNanse «le cuts Sa Mums Meee pene anS we, cock Sy 348 
On the occurrence of mammoth and mastodon remains around Hudson bay ; 
NV ABE OTB (3sIUM LO ONAT Me EMO NMP AS ESES i) 3s '=\ x; oganat sealceyMeayetlens oy < aislctaneneae cee Metaye lars dss/ia.s! Late 0 6 369 
Proceedings of the Tenth Annual Meeting, held at Montreal, Canada, Decem- 
ber 28, 29, and 30, 1897; Hmrman Jip Roy Fatroninp, Secretary....... .... 391 
SesslonkoimluesdayesDecember 28h sysacrier ie aera ss nn e sds. oe 391 
INGO Ost HME Crowne MeAE se hoc” choos o 4 ee neg eOn cee 392 
Secretamyss) TepOxts ... 1 cae nem evee Re ese isa ere eoueaels 392 
AUERISDIRCTES TREO Go eed oD DS oben aoc bo bb Solo ORE ree eae 5600 GOD 
_ WsichiwoiPs HEORE- Lo Roeeoececesnsccas050 coode ebeusGueDDoOeDE 397 
Hlectionromf oficerss.....-.. 452s Gad GOS HBAs Cele eC ene Meee aren 399 
IBJECHIOIN OF TNA Tee ee Dans > 26 3 l0.c-0 obo BagW eine de cle eae 400 
ATMEMCMMEDNG KO COMAMANHOM - .0ccccacovosscsovncctsa0 suco ones 400 
Memoir of Edward D: Cope; by W. B. Scomr.........,........... 401 
Memoir of Joseph FP. James [with Pees by T. W. Stanton. 408 
Session of Tuesday evening, December 28........................---- 413 
