502 FOURTH BULLETIN OF NATIONAL INSTITUTE. 
Meteorological, &c., Tables, &c. — 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 Imperiali 
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. IV, 
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 , New York. 
