542 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Mr. Everett Hayden made a communication on The Hurri¬ 
canes of the Bay of North America. 
Published in full in this volume, pp. 173-189. 
Mr. Frank Baker made a communication on Work of the 
Life-Saving Crews during the Recent Hurricane. 
340th Meeting. October 26, 1889. 
President Eastman in the chair. 
Twenty-four members present. 
Mr. Romyn Hitchcock read a paper on The Action of Light 
on Silver Chloride. 
Published in full in Anthony’s Photographic Bulletin, 8vo, 
New York, December, 1889, vol. 20, pp. 748-754; also in Amer¬ 
ican Chemical Journal, 8vo, Baltimore, October, 1889, vol. 11, 
pp. 474-480. 
Mr. F. W. Clarke made a communication on The Relative 
Abundance of Chemical Elements. 
Published in full in this volume, pp. 131-142. 
Mr. William Hallock made a communication entitled Chem¬ 
ical Action Between Solids. 
Published in full in the American Journal of Science, 8vo, 
New Haven, 1889, May, vol. 37, No. 221, pp. 402-406. 
341st Meeting. November 9, 1889. 
President Eastman in the chair. 
Sixty members present. 
Mr. Asaph Hall made a communication on Saturn and its 
Ring. 
Published in full as Appendix II of Washington Observations 
for 1885, 4to, Washington, Government Printing Office. 
Mr. C. E. Dutton made a communication entitled Remarks 
on Irrigation in the Arid Region. 
