52 LIST OF CONTRIBUTORS. 



Gentry, Thos. G. Continued. 



On the habits of Seiurus hudsonius Pal. P '73, 101 



Observations on change in structure of a larva of Dryocampa 



imperialis. P 73, 274 



Influence of nutrition on sex among the Lepidoptera. P 



73. 281 



Fertilization of Pedicularis canadensis. P 73, 287 



Double flowers of Ranunculus fascicularis. P 73, 289 



Observations on nests of Sayornis fuscus. P 73, 292 



Observations on the habits of the neuters of Formica san- 



guinea. P 73, 298 



On Rudbeckia hirta. P 73, 300 



On a swarm of ephemerids. P 73, 350 



On the nest of Vireo solitarius Vieil. P 73, 354 



On the habits of some American species of birds. P 74, 96 



• Curious anomaly in history of certain larvae of Acronycta 



oblinita Guenee, and hints on phylogeny of Lepidoptera. P 



75, 24 

 Gesner, Wm. On the coal and iron resources of Alabama. P 76, 



163 

 Gibbes, Lewis R. Catalogue of the Crustacea in the cabinet of the 



Academy of Natural Sciences, Philadelphia, August 20, 1847 



with notes on the most remarkable. P '50, 22 

 Gibbes, Robert W. Description of the teeth of a new fossil 



animal found in the Green Sand of South Carolina. P '45, 254 



On the fossil Squalidae of the United States. P '46, 41 



Description of new species of squalides from the Tertiary 



beds of South Carolina. P '47, 266 



On Eocene fossils from South Carolina. P '48, 57 



On mound skulls from South Carolina. P '53, 433 



On the fossil genus Basilosaurus Harlan, (Zeuglodon Owen) 



with a notice of specimens from the Eocene Green Sand of South 

 Carolina. J I, 5 



— Monograph of the fossil Squalidae of the United States. J 

 I, 139, 191 



— New species of Myliobates from the Eocene of South Caro- 



lina, with other genera not heretofore observed in the United 

 States. J I, 299 

 Gibbons, Wm. P. Seventeen-year locust. P '43, 278 



Comparison of thermometer and barometer. P '44, 164 



Description of four new species of viviparous fishes from 



Sacramento River and the Bay of San Francisco. P '54, 105 



