1396.] Proceedings of Scientific Societies. 859 
After thorough dehydration the tissue is placed in xylol for 12-24 
hours and changed several times. -It is then imbedded in paraffine in 
the usual way. 
The most complete and in every way satisfactory staining of the 
sensory nervous system was obtained by two or three injections of a } 
per cent solution of Erlich’s methylen blue at intervals of from 15 to 
20 minutes, both with vertebrates and invertebrates, as suggested by 
Semi Meyer.* 
The tissues relaxed after the first injection so that more fluid was 
introduced by the second and third injections than by the first. 
The use of chloroform was found to be wholly unnecessary by this 
method. Meyer uses a very strong solution of B. X. methylen blue, 5 
per cent to 6 per cent, in water. 
The paraffine sections should generally be quite thick (45-60 My).— 
A. D. MorRILL, Hamilton College, Clinton, N. Y. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
American Association for the Advancement of Sciences 
(continued from page 779).——-Prof. A. S. Packard was elected to 
represent the Association ov the American advisory board to codperate 
with the American member of the international commission on rules of 
nomenclature. The following were elected to represent the Associa- 
tion at the International Congress of Geologists to be held in St. 
Petersburg in September, 1897: Prof. Jas. Hall, Prof. E. D. Cope, 
Prof. B. K. Emerson, Prof. C. D. Walcott, Prof. W. N. Rice. 
Tke following sectional officers were elected to serve at the meeting 
of 1897, at Detroit. 
Vice-Presidents.—-A, Mathematics and Astronomy.—W. W. Beman, 
of Ann Arbor, Mich. B, Physics.—Carl Barus, of Providence, R. I. 
C, Chemistry.—W. P. Mason, of Troy, N. Y. D, Mechanical Science 
and Engineering.—John Galbraith, of Toronto, Can. E, Geology and 
Geography.—I. C. White, of Morgantown, W. Va. F, Zoology.—G. 
Brown Goode, of Washington, D.C. G, Botany.—George F. Atkin- 
son, of Ithaca, N. Y. H, Anthropology —W. J. McGee, of Washing- 
ton, D.C. I, Social and Economic Science—Richard T. Colburn, of 
Elizabeth, N. J. 
3 Archiv. f. Mikros. Anat. Bd. 46. Heft 2, and Bd. 47. Heft 4. 
