April, 1905.] 
Meeting of the Biological Club. 
329 
tion of the adult colony stalk. Of course to make this observa- 
tion complete the rate of division in the zooid should be observed 
and also the rate of production of the branched portion of the 
pedicle. 
At the end of one hour and thirty-five minutes the posterior 
circlet of cilia began to appear and in an hour and fifty-five 
minutes the animalcule became detached and swam away. 
The presence of the cover glass, the lack of oxygen and food 
all three probably prevented the completion of the growth and 
probably retarded the later stages of it but otherwise it seems 
normal and furnishes some idea of the rate at which the single 
stalked and branched stalked forms of Protozoa produce their 
pedicles. 
The rapid rate of growth also accounts for the rarity with 
which one finds immature forms especially those with compound 
pedicles and vet they do occur frequently enough to render the 
difficulty of identifying these forms very great. 
These observations were made in August and the rate of 
growth may be quite different from that occurring earlier in the 
summer during the period of greatest activity among the 
Protozoa. 
MEETING OF THE BIOLOGICAL CLUB. 
Ortox Hall, Feb. 6, 1905. 
The vice-president. Miss Riddle, called the club to order. 
The minutes of the previous meeting were read and approved. 
Prof. Schaffner spoke of a short letter which he had received 
from Prof. Kellerman. The party in Central America were 
enjoying the trip very much but were too busy to write. 
The first paper of the evening was by Mr. L. H. Scholl on 
“ Cotton and its By-products.” Cotton has been raised in Texas 
since the Anglo-Saxon settlement and now the state produces 
one-fourth of all the cotton in the U. S. The Cotton Boll Wevil 
introduced from idexico about 1892 has threatened the cotton 
interests of the state. But it has been found that by increased 
and better cultivation, change of crops, clearing the ground, etc., 
cotton can be raised in spite of the wevil. Formerly the cotton 
seeds were thrown into the rivers or burned, but recently science 
has shown that this perhaps is not the least valuable part of the 
crop. The products are used chiefly for feeding cattle but the 
meal is also used for fertilizer. Cotton seed oil is used in place 
of olive oil, for salad oils, butter oils and is used to adulterate 
many other oils as linseed. The lint from the seeds is made into 
cotton batting, paper, etc. The stalks yield a good fiber. The 
honey taken by the bees from the glands on leaves, stems and 
