502 FOURTH BULLETIN OF NATIONAL INSTITUTE. 
Meteorological, &c., Tables, Sic.— From Governor Reid , of Ber¬ 
muda . 
Physiological Essay on the Thymus Gland, by Jno. Simon, F. R. 
S., London, 1845, quarto.—Comparative Anatomy of the Thy¬ 
roid Gland, by the same, 1844, quarto.— From the Author. 
Jardin de St. Petersbourg, 1846.—Sertum Petropolitanum, seu 
leones et Descriptiones Plantarum, quas in horto botanico Imperial*! 
Petropolitano, floruerunt, 1846—Auctoribus F. E. L. Fischer et 
C. A. Meyer, folio, (to be transmitted as published.)— From 
Professor Fischer. 
Annals of the Lyceum of Natural History of New York, vol. IY, 
Nos. 6, 7.— From the Lyceum. 
Two packages, containing books and seeds.— From the Imperial 
Botanical Society of St. Petersburg , Professor Fischer , by the 
hands of J. Slocum , of Syracuse , Neiv York. 
