26 Proceedings. 



Nbtherla-NDS— £^aW«/?^. — Teyler lastitutioa. Archives, Ser, ii, Vol. ii, 1885, 

 Nova Scotia — Halifax. — Institute of Natural Sciences. Proceedings and 



Transactions, Vol. vi, Pt. ii. 

 POKTUGAL— /i/86o». — Royal Academy of Sciences. Memoirs, Vol. v, Pts. 1 

 and 2. History, Vols, vii, viii and ix. Journal of 

 Mathematics, 5 Nos. Journal of ootany. Journal of 

 Zoology. Journal of Physics. Journal of Flora. 

 Journal of Public Sessions. 

 B.i3^\K— Moscow. — Imperial Society of Naturalists. Bulletin, Vol. 60, No. 3, 



1884. 

 Scotland — Glasgow. — Geological Society. Transactions, Vol. vii, Pt. ii. 

 TuBKEY — Constantinople. — Hellenic Philological Society. Periodical Com 

 pilations, Vol. 15, Pt. 1. Archelogical Supplement 

 1880-81. 



Officers elected for 1886. 



President, ------- A. F. Elliot. 



Vice-president., - - - - - -J. A. Dodge. 



Recording Secretarij, - - - - C. W. Hall. 



Treasurer, ------- N. H. Hemiup. 



Corresponding Secretary, - - W. H. Leonard. 



Trustees for three years, \ '^' ^cGolnck, 



^ I N. H. Winchell. 



February 2, 1886. 

 Three persons present. No quorum. 



March 2, 1886. 



Eight persons present. 



Mr. 0. W. Oestlund described "the renewal or reproduction 

 of lost or mutilated limbs by insects." 



The reader in illustration showed an insect which had by accident lost 

 the use of one wing; the wing in its mutilated condition still remained, but 

 another, a fifth, had been grown for service in flying. [See paper T.] 



Secretary Hall gave an abstract of Bulletin 2B U. S. Geologi- 

 cal Survey, Irving and Chamberlin. 



This Bulletin is an important contribution by the authors to the discus- 

 sion of the question of the relative stratigraphy and age of the Cupirferous 

 Series — the Keweenaw group of Irving — and the so-called Eastern, horizontal, 

 sandstones of the Like Superior valley. The Keweenaw series is of a dis- 

 tinctly bedded nature; even the so-called eruptive rocks of the region came 

 under this condition. There is a persistent uniformity and steadiness of dip, 

 and this dip involves beds of enormous thickness, certainly 35,000 feet, while 

 the Eastern sandstone is horizontal ani aggregates a far less thickness. Again 

 the Eastern sandstone is made up in the main of quartz grains while the 



