44 
UNIVERSITY OF PENNSYLVANIA, Philadelphia. 
Catalogue and Announcements. 1889-1890. 
STATE BOARD OF AGRICULTURE, Harrisburg, Pa. 
Reports. 1887, 1888, 1889. 
CONNECTICUT STATE BOARD OF AGRICULTURE, Hartford. 
Annual Report. 1889. 
WESLEYAN UNIVERSITY, Middletown, Conn. 
Nineteenth Annual Report. 1889. 
VERMONT STATE BOARD OF AGRICULTURE, Montpelier, Vt. 
Eleventh Report. 18 89-1 890. 
VERMONT STATE AGRICULTURAL EXPERIMENT STATION. 
Bulletin. 18-21. 1890. 
MUSEUM OF COMPARATIVE ZOOLOGY, Cambridge, Mass. 
Annual Reports. 1888-1889, 1889-1890. 
Bulletin. Vol. XVI, 6-9; XVII, 6; XIX, 1, 2, 3, 4 ; XXI, 1, 2. 
1889-1890. 
HARVARD COLLEGE ASTRONOMICAL OBSERVATORY, Cambridge, 
Mass., Prof. E. C. Pickering, Director. 
Annals Harvard College Observatory. Vol. XVIII, 10 ; XXI, 1 ; 
XXII ; XXIV. 1888-1890. 
" On the Spectrum Ursse Majoris. 1889." 
Henry Draper Memorial. Fourth Annual Report. By Prof. E. C. 
Pickering. 
History of Harvard College Observatory. By Prof. E. C. Pickering. 
BOSTON SOCIETY OF NATURAL HISTORY, Mass. 
Proceedings. Vol. XXIV. 1889. 
Memoirs. Vol. IV, 7, 8, 9. 1890. 
BOSTON PUBLIC LIBRARY, Mass. 
Thirty-eighth Annual Report. 1890. 
HARVARD COLLEGE, Cambridge, Mass. 
Annual Report. 1888-1889. 
APPALACHIAN MOUNTAIN CLUB, Boston, Mass. 
Appalachia. Vol. VI, 1. 1890. 
Mountaineering in Colorado. The Peaks about Estes Park. By F. H. 
Chapin. 
The Register. 1890. 
MASS. STATE BOARD OF AGRICULTURE, Boston. 
Thirty-seventh Annual Report. 1889. 
ESSEX INSTITUTE, Salem, Mass. 
Bulletin. Vols. VII, IX, 4-12 ; X, XI, XII, XIII, XIV, XV, XVI, 
XVII, XVIII, XIX, XX, XXI, 1-9 ; XXII, 1-3. 1872-1890. 
Flora of Essex County. 1880. 
SALEM PUBLIC LIBRARY, Mass. 
Opening Address of Hon. John M. Raymond. 1889. 
First Report. 1889. 
Finding List. 1889. 
First Supplement to the Pending List. 1889. 
WORCESTER SOCIETY OF ANTIQUITY, Mass. 
Proceedings. Nos. XXVIII, XXIX. 1890. 
NORTH CAROLINA AGRICULTURAL EXPERIMENT STATION, 
Raleigh. 
Eleventh Annual Report. 1888. 
