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 mav be quite clifTerent from that occurring earlier in the 

 summer during the period of greatest activity among the 

 Protozoa. 



MEETING OF THE BIOLOGICAL CLUB. 



Orton 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 part}^ in Central America were 

 enjoving the trip very much but v/ere too busy to write. 



The first paper of the evening was by Mr. L. H. SchoU 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 Mexico 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 



