1896. ] NEW YORK ACADEMY OF SCIENCES. 105 
time and monazite, and mentioned many others that had been 
found in association with these. The paper was discussed by 
the Secretary. It appears in full in the Bulletin of the Ameri- 
can Museum of Natural History, Vol. VII.,341, November, 1895. 
The second paper of the evening was by J. F. Kemp and T. 
G. White, entitled “Additional Notes on the Petrography and 
Distribution of Trap Dikes in the Region of Lake Champlain.” 
The paper appears in full later in this volume. 
The third paper was by W. D. Matthew, on ‘ The Metamor- 
phism of Triassic Coals by Diabase Dikes at Egypt, N.C.” It 
is to be found on a subsequent page. 
The last paper was by J. J. Stevenson, on ‘‘ The Cerillos Coal 
Fields near Santa Fé, N. M.” The paper is printed below. 
The Academy then adjourned. 
J. F. Kemp, 
Recording Secretary. 
THE CERRILLOS COAL FIELD. 
By Joun J. STEVENSON. 
CONTENTS. 
PAGE 
MME OMI CLIOME. Saco ae stiacotsa nisin daa sis Roatan elodeariele cloiee ws asass deca havioes Sei wies saa asatee 106 
Geolosicalistructunemtheareaec.: soecelcscacesaccesneees daeneceeas scree oeasneeenec 107 
Milter BinniptivervOCKSrccccs anes ce eaacsisdne tee ae helteae coecnaaecasenciseences o> clecsscscacue 108 
pe MaTAIT OS ocr eck cosets Se cces ence caacelse so scbiscies = teueaeeecdeseceoesenedlsc ons eaitae 110 
MV eaWVIGE PASM) COAaINDCUETE vases dese scccneewsciseeetssececdee. oe ocene sans deldes ancenivcie ce 111 
Ole Semel ss aacecceteand snc tse tee Pees tactenen ace dolelactsmeatomal ae siaceadanssestester iia 
WET CAS MINING ae fap eessthsicls =i wc oactacte maul ois sole oo esne osaeepte ese auaieev onceeees clos neice 113 
AO EDMAN OAM SINT TE seroce site Soper sieaiecis ness Sonstvigos suena MotiosiseoGin cites hacieeeseecsset 113 
WAC WA SHINING: .ccrneneseesasasecnccesauace deen Wsulereaaeecretneseostenenescsentaces 114 
AN SCONE OS ERTE - nosh oA aetar cs <evosessicenasaeeetaacensamecenieccescutesoteterczane set 115 
EiresCook-W hires Coal Wedkwee.. ssvassebeccecbs sac devc osu sere sck et coees edececlesnases 116 
WharacterishicstohthelCoals-te.ne8 = ae~ ac. cocks tases aes desbeeaass <-Madenesacaviddcan dees aly 
Chemical composition of the White Ash bed...............ceccecsssececercecees 117 
Chemical composition of the Cook-White bed..................:.scsceeeseeeees 119 
Causevet the Metamorphism Of fhe: COal, ..cc..c..20<cseceecandananeuscecsoccasesees 120 
Prof. Kemp’s Notes on the Eruptive Rocks.......................: ARR er CEUE EERE 121 
The Rio Galisteo rises in east central New Mexico and flows 
westward to the Rio Grande. Its bed is on the Dakota, Colo- 
rado and Montana, but the streams from the south drain the 
