Geology and Natural History. 479 
tions of the Academy, and labelled it as having been obtained 
child’s mouth, which was evidently the same species. It 
having been in a child’s mouth, is probably to be explained by 
il? ae that the child had eaten an infected apple.’ 
Two specimens of a tape worm, Tenia, were obtained by Dr. 
Leidy from the stomach of an Australian Wombat. He names a 
1. bipapillosa, An Australian Whallabee afforded, from its 
toneal cavity, a Fil ney, . ich he has named F. spelaa,— ole 
cad. Nat. Sei., 1875, 1 
19. Jahresbericht der Dheeentodon zur wissenschaftlichen Unter- 
suchung der deutschen Meere in Kiel, fiir die Jahre 1872, 1873, 
IT und TIT fale Tone: Large 4to, with 12 plates and a chart. 
Berlin, 1875.—This report is a valuable contribution to the physi- 
cal and _ biological history of the European seas. It cones of 
ve parts. The firs t, upon the Physics of the Seas, is by 
A. Meyer. It discusses very fully the physical features of ‘the 
waters of the North Sea, observed during the cruise of the “ Pomme- 
North Sea gives the track of the expedition are the oe of 
e various stations. e waters near the coasts of England, 
composition of the sea-waters. The third part consists of a report 
the marine botany, by Dr. P. Magnus. He gives a catalogue 
of the alge, with their distribution, etc., and two plates. 
fourth part is a report on the Diatom macen, by Adolf Schmidt; it 
is ee by three beaut a The fifth part is devoted 
t ogy. inclu epee on the Rhizopods, by F. E. 
phates . on Bikitioentt: wih a 
derms, by Karl Mobins and Butebli; on Worms, with a plate, 
by Karl Mobins. Quite a ane ah new forms are described in 
several of the groups. Am youd: w Rhizopods there is a fe 
naceus, which appea 
e very closely related to a aan ar sats # dfn sa: of t Po 
same genus, which occurs very abundantly on —y bottoms 
off the New ae th coast, in fifteen to a fathom We have 
Sists ot a flat, sani-covered poe body, with a variable num- 
ber (usually five to nine) o F prose a radiating 
the periphery, and emtting gece ife, irregu aa branching 
pseudopodia. Our species grows to nearly a fourt an inch in 
diameter, and scarcely differs from the figures - 4 arena 
except in being usually covered by coarser grains of sand, and in 
having the projections a little more irregular, and often branched. 
* See also the writer’s Report on hoje tt in First Report of U. 8. Commis- 
missioner of Fish and Fisheries, p. 503, 
