564 The American Naturalist. [June, 
was laid down in post-Pliocene time. It may be, however, that future 
investigation will demonstrate the presence of Cretaceous, Tertiary, 
and Quaternal strata at Gay Head.” — Bulletin Geol. Society of America, 
Vol. T. 
The Age of the Laramie.—At the meeting of the Geological 
Society of America, held at New York, December, 1889, Mr, Lester 
F. Ward remarked: ‘I take it that the discussion here to-day should 
avoid, as far as possible, repetition of the statements that have already 
been published. Like Dr. Newberry, I have in my hands a large 
amount of material, both from the typical Laramie group and from the 
Fort Union group, which has not been published. A few years ago, 
as you all probably know, I did publish a paper on the Laramie group, 
to which I prefixed a prefatory discussion in regard to the probable 
age of that group. In that discussion I admitted that there was the 
same lack of identity between the Fort Union fossil plants and those 
of the lower Laramie which Dr. Newberry has pointed out. In further 
investigations of this material (for at that time I had only studied a 
small portion of it, except in a very general way) I have not had any 
occasion to alter my opinion in that respect, and I am to-day prepared 
to say what I said then and what Dr. Newberry has said this morning, 
viz., that so far as the floras of the Fort Union group and of that 
which was originally called the Laramie beds of Colorado, Wyoming, 
and New Mexico are concerned, they are not identical—they are very 
different. 
t The neri 
E 

on to the Laramie of Colorado and Wyoming and the Fort Union 
group, as shown in the table of distribution given in my Synopsis of the Flora of the 
Laramie Group (Sixth Annual Report U. S. Geol, Sarvey, 1885 
Sequoia langsdorfii, Sabal campbellii, Quercus olafseni, Juglans rhamnoide. 
rugosa, Ficus tiliefolia, Magnolia hilgardiana, Trapa microphylla. 
These are exclusive of several species thus far only found in the Laramie of British 
Columbia, one of the America areas, as also of a number of more or less doubtful 
cases. 
