126 LIST OF CONTRIBUTORS. 



Meehan, Thomas. Continued. 



■ Sexual variation in Castanea americana. P '80, 353 



Rain trees. Note on Yucca gloriosa. P '80, 355 



Dioecism in Andromeda catesbsei Walter. P '80, 356 



Note on the seed-vessels of Wistaria. P '80, 358 



Note on treeless prairies. P '81, 11 



Motility in plants. P '81, 79 



Sexual characters in Fritillaria atropurpurea, P '81, 111 



■ Saroodes sanguinea. P '81, 160 



Talinum teretifolium. P '81, 161 



Notes on mistletoes. P '81, 439 



Dimorphism in a willow. P '81, 442 



Color in autumn leaves. P '81, 454 



On movements and paralysis in the leaves of Robinia. P 



71, 456 



Pilobolus crystallinus. P '81, 463 



— — Varying influence of heat on flower-buds and leaf-buds. 

 P '81, 466 



Fruiting of Gingko biloba. P '82, 9 



The relation of heat to the sexes of flowers. P '82, 89 



Historical notes on arbor vitse. P '82, 110 



Influence of heat on the separate sexes of flowers. P '82, 113 



Individual variation in species. P '82, 114 



Nest of Cheetura pelasgia. P '82, 215 



■ Colored flowers in the carrot. P '82, 221 



■ Night-closing in the leaves of purslane. P '82, 221 



Summer migration of the robin. P '82, 221 



Heliotropism in sun-flowers. P '82, 222 



Apparent bird tracks by the sea-shore. P '82, 238 



On the mode of entrance of the sporidia of parasitic fungi. 



P '82, 251 



Sexual characters in Cepbalotaxus. P '82, 252 



On an abnormal cabbage. P '82, 285 



On the nest of Contopus virens. P '82, 285 



— - Earthworms drawing leaves into the ground. P '82, 286 



On the flowering of the Stapelia. P '83. 49 



Notes on Echinoeactus. P '83, 84 



— On the relations of heat to the sexes of flowers. P '83. 85 



Observations on Forsythia. P '83, 111 



Influence of circumstances on heredity. P '83, 112 



— Some evidences of great modern geological changes in 



Alaska. P '83, 187 



