HENSHAW: REPORT OF SECRETARY AND LIBRARIAN. 19 
February 17, 1899. Special meeting. Eighty-six persons present. 
Prof. H. F. Osborn. Evolution of the Mammalia in North 
America. 
March 1, 1899. General meeting. Thirty-four persons present. 
Dr. T. A. Jaggar, Jr. The intrusive rocks of the Black Hills. 
March 15,1899. General meeting. Twenty-eight persons present. 
Mr. E. C. Jeffrey. Development and affinities of the genus 
Equisetum. 
Dr. C. R. Eastman. Some new North American fossil fishes. 
April 5, 1899. General meeting. Sixty-three persons present. 
Report of the Nominating committee. 
Prof. C. E. Fay. The Alpine features of the Canadian 
Rockies. 
April 26, 1899. General meeting. One hundred and forty-four 
persons present. 
Dr. W. McM. Woodworth. Samoa and the Samoans. 
Mr. G. M. Allen. Notes on the reptiles and amphibians of 
Intervale, N. IT. (By title.) 
Dr. B. L. Robinson and Mr. J. M. Greenmail. Contributions 
from the Gray herbarium of Harvard university, no. 17. 
(By title.) 
Dr. Gary de N. Hough. Studies in Diptera Cyclorhapha. 
(By title.) 
Mr. F. N. Balch. List of marine Mollusca of Cold Spring 
Harbor, Long Island, with descriptions of one new genus 
and two new species of nudibranchs. (By title.) 
Prof. G. E. Stone. The fiora of Lake Quinsigamond. (By 
title.) 
Publications. 
The following publications have been issued during the year: — 
Localized stages in development in plants and animals, by Robert 
T. Jackson. Memoirs, vol. 5, no. 4, 65 pp., 10 plates, 5 cuts. 
The development, structure, and affinities of the genus Equisetum, 
by Edward C. Jeffrey. Memoirs, vol. 5, no. 5, 36 pp., 5 plates. 
The genus Antennaria in New England, by Merrit L. Fernald. 
Proceedings, vol. 28, no. 8, 13 pp. 
Notes on a Carboniferous boulder train in eastern Massachusetts, 
by Myron L. Fuller. Proceedings, vol. 28, no. 9, 14 pp., 1 cut. 
