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CONTENTS. 
XIV. A Brief, Preliminary Account of the Hessian ae and its 
Parasites; by Epwarp C. Herrick, 
XV. Proceedings of Learned Societies : 
I. Association of American Geologists, 
II. Boston Society of Natural History, 
Miscei.anies.—Proceedings of the Geological Society, 190.—The 
former existence of Glaciers in Scotland, 191.—Red Color of 
the Salt Marshes of the Mediterranean: New Observations on 
the Infusoria of Rock Salt: Ornithological Gallery of the Brit- 
ish Museum, 193.—Prof. Agassiz and his Works, 194.—Sketch _ 
of the Geology of North America, 195.—Outlines of Anat- 
omy and Physiology, translated from the French of H. Milne 
Edwards, 199.—Volcanic Phenomena in Hawaii: Manilla 
Hemp, 200.—National Institution at Washington for the pro- 
motion of Science, 203.—Fossil Turtle : Fossil Saurians: Mi- 
croscopical Observations and Microscopes, 205.—Geological 
Drawings, 206.—Glaciers, Moraines, &c.: British Associa- 
tion—Mr. Murchison—His Journey to the Ural mountains— 
Opinions, &c., 207.—Dr. Brown of Edinburgh on the Produc- 
tion of Silicon from Paracyanogen, 208.—Artesian Boring 
at Paris, 209.—The Theory of Horticulture: Correspond- 
ing Magnetic Observations, 210.—Fossil Foraminifera in the 
Green Sand of New Jersey, 213.—Discovery in Virginia of 
the regular Mineral Salt Formation, 214.—Proceedings of the 
Academy of Natural Sciences of Philadelphia, 215.—A T'rea- 
tise on the Theory and Practice of Landscape Gardening, 
adapted to North America, 216. 
ERRATA, VOL. XL. 
. 309, |. 23, for Ergrinum read Erysinu 
Page. 
189 
a 
) P.. 388, 1. 5, dele of the hyoid bone ; |, 22, for edentata read edentula ; |. 23, for 
namycush read namocush. 
