12 



The Period from 185 i to i860 



The Albany Meeting, August, 18 j6. (Vol. 10) 



1. On Acoustics Applied to Public Buildings. Joseph Henry. 



2. On the Spirality of Motion in Whirlwinds and Tornadoes. W. C. 

 Redfield. 



3. On the Agency of the Gulf-Stream in the Formation of the Peninsula 

 of Florida. Joseph Le Conte. 



The Montreal Meeting, August, 1857. (Vol. 11) 



1. Zodiacal Light. Charles Wilkes, U.S.N. 



2. Fluctuations of Level in the North American Lakes. Charles Whit- 

 tlesey. 



3. Thoughts on Species. James D. Dana. 



4. Laws of Descent of the Iroquois. Lewis H. Morgan. 



The Baltimore Meeting, May, 1858. (Vol. 12) 



1. On the Mean Distances of Periodic Comets. Daniel Kirkwood. 



2. On the Australian Weapon called the Boomerang. Joseph Lovering. 



The Springfield, Mass., Meeting, August, 1859. (Vol. 15) 



1. On the Secular Variations of the Eccentricities and Perihelia of Cer- 

 tain of the Asteroids. Simon Newcomb. 



2. On the Supposed Lunar Origin of Aerolites. B. A. Gould, Jr. 



3. Contributions to the History of Gypsums and Magnesium Rocks. T. 

 Sterry Hunt. 



4. The Indian Mode of Bestowing and Changing Names. Lewis H. 

 Morgan. 



The Newport, R. I., Meeting, August, i860. (Vol. 14) 

 1. The American Reindeer. L. E. Chittenden. 



Membership 



During the early years of the Association its membership was published 

 only at the close of the meetings. For the decade under consideration the 

 memberships at the close of the meetings were as follows : 



