THE ANGLO-AMERICAN CATTLE COMPANY. oll 
without figures, of the brains of the sheep, and of the dog and rabbit, are given 
in the little works of Morrell and Foster and Langley. With some modification 
these apply to the brain of the cat. 
Finally, it is hardly necessary to urge that outline drawings be made of the 
brain as a whole, and of its parts as exposed by dissection. If thisis done, by 
the end of the summer the teacher will have become better able to appreciate the 
peculiarities of the human brain when one comes in his way, and will have laid 
a substantial foundation for the physiological and psychological instruction which 
he may be called upon to impart. —Sczence. 
THE PROPAGATION OF OYSTERS. 
At the recent meeting in this city of the American Fish Cultural Association, 
a paper was read on the propagation of the oyster, by Dr. W. J. Brook, of the 
Johns Hopkins University. The manner in which this propagation takes place 
had never before, he said, been thoroughly understood. Through studies made 
by him last summer, however, great light was thrown on the subject. He found 
that the American oysters do not breed their young in the shell, as had been sup- 
posed, and consequently the eggs can be impregnated artificially. An average 
oyster contains from six to nine million eggs, and one of large size may contain 
fifty millions. The plan pursued by him in fertilizing these eggs was to chop the 
male and female oysters up together; thus the fluids are mixed and the impreg- 
nation is made complete. The process of development immediately begins, and 
goes on so rapidly that a change may be noted every fifteen seconds. Ina very © 
few hours the embryo is sufficiently formed to swim in the water. The shells at 
first are very small, and are not adjacent to each other. They grow very rapidly, 
closing down over the sides, and finally unite and form the hinge. In the short 
space of twenty-four hours the young oyster is able to take food, and from three 
days to a week it attains perfect form. During its early life it is a swimming ani- 
mal. Tne oyster is able to reproduce its species at the end of a year’s growth, 
and it is marketable at the age of three years. —Sccentujic American. 
THE ANGLO-AMERICAN CATTLE COMPANY. 
Notwithstanding the rapid development of the trade in dead meat and cattle 
between this country and America it is probable that the traffic is only in its in- © 
fancy. To carry on the breeding and rearing of stock in the plains of the far 
West, in a systematic manner, the Anglo-American Company was established 
abont a year ago, and it has been working with much energy in thus utilizing the 
resources of that great expanse of magnificent grazing country. Already the com- 
pany’s manager, Mr. Groom, has secured about gooo head of fine cattle in Texas 
at an average of 27s. or say 30s. each; and these are being steadily driven in three 
great herds, containing something over 3000 heads apiece, towards a point on the 
