424 
JOURNAL OF THE PLYMOUTH INSTITUTION. 
Smithsonian Report, 1873-74. 
They have to thank Dr. Hayden, employed by the U.S. Govern- 
ment in the scientific explorations of portions of the territories, for 
the following large and very valuable contribution to their library : 
" U.S. Geological and Geographical Survey of Colorado ;" " Report 
of Geological Survey of the Territories,' ' vol. vi. ; " Lists of Eleva- 
tions," by Gannet ; " Catalogue of the publications of the Survey ;" 
" Cones' Birds of the New World;" " Review of the Fossil Flora 
of North America " Descriptive Catalogue of Photographs of the 
Survey;" and "Bulletin," No. 6. 
A correspondence has been opened with the Societa Toscana 
della Scienza Naturale, from whom three parts of their "Atti" 
have been received in return for the last Annual Report. 
The following works have been purchased : 
"Monograph of the British Spongiadae," by Bowerbank, vol. iii. 
(Ray Society). 
" Zoological Record, 1873." 
Darwin's "Insectivorous Plants." 
Buckner's "Man in the Past, Present, and Future." 
Ellacombe's " Bells of Somersetshire." 
Maclean's "History of Trigg Minor," parts 10, 11. 
" PalaBontographical Society," vol. xxix. 
