106 LIST OF CONTRIBUTORS. 



Leidy, Joseph. Continued. 



■ Fungus parasite on a mouse. P '73, 260 



— — On Distoina hepaticum. P '73, 364 



On Lingula in a fish of the Susquehanna. P '73, 415 



On fossil elephant teeth. P '73, 416 



On circulatory movement in Vaucheria. P '73. 420 



On Hydra. P '74, 10 



■ On Protozoa. P '74, 13 



On the mode of growth of desmids. P '74, 15 



On Actinophrys sol. P '74, 23 



Criticism of paper of Prof. Oope. P '74. 74 



Note on the enemies of Difflugia. P '74. 75 



On a supposed compound derived from leather. P '74, 75 



■ Notice of some new fresh-water rhizopods. P '74, 77 



Notice of some fresh-water and terrestrial rhizopods. P '74, 86 



On the revivification of Rotifer vulgaris. P '74, 88 



— — On a parasitic worm of the house-fly. P '74, 139 



- On Peotinatella magnifiea. P '74, 139 



On some fresh water Infusoria. P '74, 140 



Notice of a remarkable Amoeba. P '74, 142 



On the mode in which Amoeba swallows its food. P '74, 143 



On the motive power of diatoms. P '74. 143 



Remarks on sponges. P '74, 144 



Notice of some rhizopods. P '74. 155 



■ On Dryocampa. P '74, 160 



- Notice of remains of Titanotherium. P '74, 165 

 ■ Notices of rhizopods. P '74, 166, 225 



On supposed spermaries in Amoeba. P '74, 168 



On specific gravity. P '74, 218 



■ On fossils presented. P '74, 223 



On a fungus in a flamingo. P '75. 11 



On some parasitic worms. P '75, 14, 17 



On some marine rhizopods. P '75, 73 



On a coal fossil, etc. P '75, 120 



On a curious rhizopod. P '75, 124 



- On psorosperms in a mallard duck. 1' '75. 125 



On Ouramceba. P '75. 126 



On Mermis acuminata. P 75, 400 



- On rhizopods. P '75, 413 



Quereus heterophylla. I* '75. 415 



On Petal od us. P '76. 9 



