DEPARTMENT REPORTS. 69 



The class instruction given has been added to and modified from that 

 heretofore given in the following particulars : 



(a) The agricultural chemistry of the junior year instead of consist- 

 ing entirely of lectures has now 3 lectures and 4 hours a week labora- 

 tory work by each student. 



(b) A course of laboratory work and discussions on topics relating to 

 the application of chemistry to the household was given the senior women. 



(c) An elective course in quantitive analysis was given 20 senior Agri- 

 cultural students. The major portion of the time being given to analysis 

 of'stock foods and fertilizers. 



As the laboratory space was required by the regular college classes, 

 the special course in chemistry of beet sugar manufacture had to be 

 abridged to the disadvantage of the students pursuing the course. Next 

 year I hope, owing to changes in the arrangement of the laboratory 

 recently authorized by the board, this will not be necessary and that we 

 shall be able as heretofore to give men from the factories and farm a 

 practical insight into the chemistry of the factory. 



As in previous years there have come in for examination and report 

 samples in a great variety of materials, such as peat, marls, clay, stock 

 foods, and minerals from farmers and others. Our students are thus 

 kept in touch with the work of the outside world. I have also investi- 

 gated to some extent the composition of various mixtures found in the 

 market for use by breeders in destroying parasites on their stock. The 

 matter seems to me to be one worthy of more extended investigation. 

 Tlie stock breeder needs a means of defense against these parasites, which 

 he thoroughly understands some such a mixture as the fruit grower 

 possesses in the Bordeaux mixture and the arsenical compounds which he 

 so frequently uses. 



The efficient help of Instructors Keed, Michael and Benner with the 

 college classes, and Chief Chemist A. N. Clark of the Alma Sugar Co., 

 in the special course I desire to heartily recognize in this report. 



Respectfully submitted, 



FRANK S. KEDZIE, 



June 30, 1903. Professor of Chemistry. 



