nn dt 
D. WETHERILL On Adipocire and its formation. 
J. L. Le conrw. Revision of the Cicindelae of the United States. 
E_ HALLOWELL. On a new genus of Boidoe from Cuba. 
Proceedings of the American Philosophical Society. Vol. 
MID 
Imhoud: 
E. HALLOWELL. Notice of some new and rare species of Scincidae in 
the collection of the Academy of Natural sciences of Philadelphia. 
J. LEIDY. Notice of remains of the Walrus discovered on the coast of 
the United States. 
Descriptions of the remains of fishes from the Carboniferous 
Limestone of Illinois and Missouri. 
Remarks on Saurocephalus and its allies. 
Observations on the extinct Peccary of North- America. 
Remarks on the structure of the feet of Megalonyx. 
ADAMSON. Notes on certain modes of measuring minute Intervals of 
Time. 
Memoirs of the American Academie of arts and sciences. 
Cambridge and Boston 1857. N.S. Vol. VL; p. 1. 4°. 
Inhoud: 
D. FREUDWELL. On the practicability of constructing Cannon of great 
caliber, capable of enduring long-continued use under full charges. 
C. BECK. The age of PETRONIUS ARBITER. 
G. P. BOND. On the use of Equivalent Factors. in the method of least 
squares. 
W. H. EMORY. Magnetie observations on the Boundary line between 
the United States and Mexico, made in 1855. 
Smithsonian contributions to knowledge. Washington 1857, 
Vol. IX. 4». 
Inhoud: 
L. W. MEECH. On the relative intensity of the Heat and Light of the 
Sun upon different latitudes of the carth. 
E. HITCHCOCK. Illustrations of Surtace geology. 
B. MAYEN. Observations on Mexican History and Archacology, with a 
special notice of Zapotee remains as delineated in Mr/ 3. G. Sáw- 
kKiN’s Drawings of Mitla, enz. 
w. GIEBS and r. A. GENTn. Researches on the ammonia Cobalt basis. 
Annual report of the board of regents of the Smithsonian 
Institution. Washington 1857. 8°. 
J. RHEES. An account of the Smithsonian Institution, its 
founder, building, operations etc. Washington 1857. 8°. 
