162 RECORDS 



The general geology of the central portion of the Territory was 

 then briefly reviewed, while the local geology of the Antonio 

 Sandoval Grant was presented more in detail. It was shown 

 that the saline lakes occur in the Red Beds of Jura-triassic or 

 Permian age. These Beds are separable, on lithological 

 grounds, into three divisions, designated as the Red Series, the 

 Chocolate Series, and the Vermilion Series. Lenticular de- 

 posits of salt and gypsum are frequently found at the top of the 

 lower or Red Series, and evidence was produced to show that 

 the Saline Basins under consideration occur at this horizon. 

 The facts were noted that Triassic types have been described 

 from some part of the Red Beds (presumably the upper), while 

 a characteristic Permian fauna has been recently found near the 

 base of the Red Series. In view of these facts, and since no 

 horizon of marked transition other than the salt and gypsum 

 deposits occurs, it was suggested that these deposits might 

 possibly mark the boundary line between the Jura-triassic and 

 Permian in central New Mexico. This paper was discussed by 

 Professor Kemp and Dr. Grabau. 



Dr. Martin, in his paper, presented some geological notes on 

 the neighborhood of Buffalo, N. Y., in the summer of 1901. 

 He did not claim any special novelty for the data presented, 

 but judged that they might be of interest to any members not 

 acquainted with that region. Dr. Martin first outlined roughly 

 the distribution of the series from the Medina to the Corniferous 

 Limestone, and then mentioned in detail certain special features. 

 He particularly noted certain joint seams in the Niagara Lime- 

 stone near Lockport, New York, which have been much eroded 

 and decomposed, and which are now filled with a dark brown 

 clay-like material containing numbers of half-decayed modern 

 land shells, such as Helix albolabris. He then described the 

 series of rocks exposed in the quarries found on N. Main Street, 

 Buffalo, which are the source of the famous Eiirypteriis speci- 

 mens. This series extends from the Corniferous Limestone to 

 the Saline series, and is divisible into fiv^e members, known as 

 the Corniferous Limestone, the Blue Limestone, the Bullhead 

 Rock, the Water Limestone and the Salina. Dr. Martin par- 



