38 



loosening the bark, all but three of the eggs were unfor- 

 tunately lost. These eggs were nearly mature. March 

 18, the young moved in the egg when disturbed. The 

 eggs were very transparent, especially when wet with 

 water. The legs of the first and second pairs were folded 

 sideways around the body, the third and fourth pairs were 

 turned under the body and forward near the middle line, 

 their extremities coming up each side of the head. The 

 basal joints of the mandibles seemed shorter in propor- 

 tion than in the adult. While examining two of these in 

 water in a cell they were cracked by too much pressure 

 of the cover. The next day the young spiders were out 

 walking about the bottle. They were .04 of an inch in 

 length. The number of joints of the tarsi was much less 

 than in the adult P. formosum, being seven or eight in 

 the first pair of feet, seventeen or sixteen in the second, 

 eiffht in the third and ten in the fourth. 



Charles II. Webber of Salem was elected a Resident 

 member. 



The Secretary announced the following correspon- 

 dence : — 



Buswell, E. W., Boston, Men. 20. 24; Crowninshield, F. B., Boston. Men. 20; 

 Hall, B. II.. Troy. X. Y.. Men. 22; Verrill, A. E., New Haven, Conn.. Men. 21 ; Haw- 

 erman, A. D., Chattanooga, Tenn., Men. 20; Higginson, T. W.. Newport, R. I.. 

 Men. -'1; II. .lines, ,1. c, Detroit, Mich., Mch. 30; Lunt, W. I*.. Boston, Men. 24; 

 Moulton, Henry W., Newbin-ypori, April :; : Perkins, A.T., Boston, Mch. 24; Pre- 

 ble, Geo. Henry, Charlestown, .Mch. 27, 31 : Waite, Otis F. B., Concord, X. II., Apr. 

 l; Westermann, B., New York, Mch. 21; Bowdoin College, Mch. 20; Buffalo His- 

 torical Society, Mch. 21; Maine Historical Society, Mch.; Moravian Historical 

 society, Mch. 20; New Hampshire Historical Society, Mch. 20; New Jersey Histor- 

 ical Society, Mch. 22; New York Historical Society, Mch. 20; Providence Athe- 

 na'Lim. Mch. 24; Rhode Island Historical Society, Mch. 21. 



The Librarian reported the following additions : 



By Donation. 



American Colonization Societv. Annual Report for 1870. 

 Boston Gynaecological Society Animal Address for 1871, by Winslow 

 Lewis. 

 BrOoks, Mrs. H. M. The Woman's Journal for 1870. 



