Hesperornithidte, 869. 
Heterognathidae, 860. 
Heteromi, 1016. 
Heteroaomata, 859, 860. 
Heterospondyli, 871, 873. 
Heterotidae, 858. 
Hicoria alba, 459. 
Hill, Extract, Feb. 168, 169. 
HippocampidoD, 860. 
Hippoma, 951. 
Hippopotamidse, 877. 
Hirundinidae, 873. 
History of Garden Vegetables, 
Hog Cholera, 892. 
Fish, 945. 
Holland, Arboreal Tadpoles, 3 
Holmgren, A. E., Notice of Des 
Holocephali, 853, 854. 
Holomeniscus, 978- 
kesternus, Feb. 164. 
Holoptychiidie, 856. 
Holopus, Feb. 163. 
Holostomi, 858. 
Homeyer, E. F. von. Notice 
Hornblende, 907. 
and Biotite, Mar. 158. 
Ptridotite, Mar. 157. 
Hornblende Schists and Graunlites of 
of Easter Island, 877. 
Human Embryology, 556. 
Huronian Rocks, Mar. 158. 
Hyacinth Quartz, 814. 
Hj/mr.a crocuta, 486. 
Hytenodontidae, 876. 
Hydrophidae, 869. 
Hydropotes, Mar. 1 
Hygiene, 727. 
Hymenoptera, 270. 
Hynobiidse, 862. 
Hyocrinus, Feb. 153. 
Hyperoarti, 853. 
Hyperotreti, 853. 
Hypertraugulus, Mar. 121, 122. 
atus, Mar. 122, Mar. 136. 
Hypheothrix lamino 
Hypisodus minimus, 
Hypostomus, 427. 
Hyracidfe, 876. 
Hyracodontidae, 8' 
TBIDID^, 872. 
A Ice Crystals, 525. 
Ichthydium, 913. 
Ichihyocephali, 858. 
Ichthyophis fflutinosus, 1098. 
Ichthyopterygia, 863, 864. 
Ichthyornithidae, 873. 
Ichthyosauridae, 864. 
Ichthyotomi, 854. 
Iguanodon preitvichii, 45. 
Iguania, 867. 
IguanidiB, 867. 
Innervation of Blood Vessels of Kidney, 
Impulse, Voluntary, : 
Inadunota, Feb. 1 
teries Near Romney, Feb. 
the Barberry, 264 
1 Mammalian Heart, Mc- 
Interior Continental Area, 229. 
