218 The American Geologist. Octoix-r, 18»6- 
The second lecture, by Prof. E. I). Cope, based on his own 
explorations and those of Mr. H. C. Mercer, was entitled 
"The Results of Cave Explorations in the United States, and 
their Bearing on the Antiquity of Man." A part of the dis- 
coveries thus presented, showing man to have been contempo- 
rary in Tennessee with the Megalonyx, a gigantic fossil sloth, 
was published by Mr. Mercer in the American Naturalist for 
last July (vol. xxx, pp. 608-611, and a plate), together with 
notes of Prof. Cope's earlier cave researches. 
Titles and Abstracts of Papers in Section E. 
Forty-two papers were presented in Section E (Geology and 
Geography), of which the following are titles, in their order 
on the programs of the sessions. For many of the papers ab- 
stracts are also added, as kindly supplied by the authors, or 
shorter notes from correspondents at the meeting. Among 
these Prof. C. W. Hall of Minneapolis, Minn., Dr. John M. 
Clarke of Albany, N. Y., Prof. E. W. Claypole, of Akron, O., 
and Mr. F. B. Taylor, of Fort Wayne, Ind., press secretary of 
Section E, deserve especial mention and thanks, both for notes 
of papers and for portions of the foregoing pages. In a few 
instances the notes are derived from the report of this section 
by Prof. W. N. Rice in Science for September 18 (pp. 382-388). 
1. Notes on the Artesian Well sunk at Key West, Florida, in 1895. 
Edmund O. Hovey. This well has a depth of 2,000 feet, and samples of 
the boriags were taken, under the direction of Prof . Alexander Agassiz, 
at intervals of 25 feet through the whole depth. The author's micro- 
scopical examination shows the entire section to be nearly pure lime- 
rock. It is a typical oolite at the surface and at 25 feet below. Beneath 
that depth most of the samjjles indicate a fine or coarse, more or less 
loosely comi)acted calcareous sandrock, relieved somewhat by beds or 
masses of dense or porous limestone. Small bits of oolite or loose ovules 
are present in about half of the samples, indicating a shallow origin for 
much of the material. The most solid rock of all passed through came 
from the depths of 50 to 175 feet. 
The most peculiar jjetrographic feature is the presence in all the sam- 
ples except three of a small amount of quartz. This varies from the 
merest trace up to a very noticeable proportion, and is of two kinds: the 
most abundant is extremely fine-grained, angular or crystallized, and 
perfectly limpid; the other kind consists of scattered grains, well 
rounded by abrasion, and much larger than the first. 
Organic remains which preserve sufficient character for reference even 
to their class are not numerous, except in a few of the samples. For 
the most part minute forms are indicated by the fragments. Taken as 
