J. J. Stevenson— Laramie Group of Southern New Mexico. 371 
At the San Pedro locality, four beds of coal were seen within 
a vertical distance of bar Bly.e one hundred feet. The lowest 
bed has the following structu 
Upper division, 
SOR fcuk leurt pees 0’ 8” 
Olay ais baa eiunt ae 2°. 6" 
08). 038 AD cease 4 
Shale wow ee a ee ee of a” 
Lower. division... oesco a ea ea ee ee Cr 
ORL coc ee eee tae 
Clay no ee ae as 
oat oo ee 2. 2" 
The blossom of the next bed at nearly twenty feet higher is 
somewhat more than five feet thick. The bed contains much 
semi- anthracite, while that from others cokes readily. 
Opening is not new, coal having been obtained Son it oan 
ago to supply Fort Craig. 
A beds belong at not less than two hundred feet above 
the base of the group. 
That this field belongs at the same horizon with the Trinidad 
coal field has been announced by Mr. ein. Dr. Hayden 
and the writer, as proved by the stratigraphy and by the tes- 
timony of the fossil plants. In the paper already referred to 
the writer stated that he had observed on the Galisteo an unex- 
pected intimacy between the Laramie and the Fort Pierre and 
that he had obtained Ostrea congesta from a ferruginous be 
ae 8 in the Lara mie. This intimacy is much more ma rked 
at the 
Pieris. aside from the coal beds. ere these shies a 
Galisteo. The ferruginous Peds valk cone-in-cone structure 
appear to be wholly non-fossiliferous on the Galisteo, bat at 
