656 General Notes. [ August, 
either the chimpanzees I have dissected, and was just covered and 
no more by the posterior lobes of the cerebrum.” He closes his 
paper with the following remarks: 
“What can be inferred from the general organization of the 
orang as to its relation to the other primates? The orang like 
man has twelve ribs, whereas the gorilla and chimpanzee have 
thirteen ; on the other hand, the carpal and tarsal bones are nine 
in number in the orang, while the chimpanzee and gorilla agree 
with man in having eight. The upper extremity of the orang re- 
sembles that of the gorilla in the absence of the flexor longus 
pollicis. The chimpanzee and man are alike in this respect, at 
least the slip from the flexor longus digitorum in the former 1s 
functionally a flexor longus. In the absence of a flexor longus hallu- 
cis, and in the presence of an opponens hallucis, the orang differs from 
man, the anthropoids, and all the monkeys. The great blood 
vessels arise from the arch of the aorta in the gorilla and man in 
the same way; the same disposition is usually seen in the chim- 
panzee, rarely in the orang. The lungs in the orang are not 
chimpanzee and man. The 
the progress of biology, as many of the leading German, English, 
Russian and Italian zodlogists have, owing to the unusual facilities 
ong animals breeding in the aquarium, none are SO easily 
observed as the large crustacea and molluscs. The large crabs 
pair and lay eggs, though the zoéz or larvz, could not be reared; 
Sepia, Aplysia and Doris. Though many nudibranchs lay freely, 
their eggs never come to maturity. But many of the lower 
animals without any care whatever, thrive and multiply wonder- 
fully, Compound Tunicates take the lead among these “spo? 
taneous” productions, The graceful Botryllide exuberate 1 
