28 



room. For the work in farm drainago the department of agronomy 

 is provided with .several surAtwor.s' leveling- instruments, chains, and 

 tapelines, and all necessary tools for running ditches and laying tile. 

 Students are given a consideral)le amount of practice in surveying 

 systems of drainage, running levels, digging ditches, and laying tile. 

 Two laboratories are provided for the study of soil bacteriology, 

 although one of these is also used during part of the year for begin- 

 ning students in general bacteriology. Thirty-two student places 

 are provided for. Tlie laboratory is equipped with incubators, micro- 



Fic. 1. — Centrifuge, shaker, and elcetrie motor used in ineehanical analysis of soils. 



scopes, autoclaves and other sterilizing apparatus, balances, and other 

 materials needed for bacteriological work, including staining solutions, 

 chemicals, media, etc. The hood tables and the tile-top side tables 

 are provided with steam baths, gas, air, vacuum, and water pipes, 

 and waste sinks. Adjoining the laborator}' are a store room, an 

 incubating room, and an animal room with cages for keeping animals 

 under experiment. 



Two laboratories are provided for the work in farm crops (PI. IV, 

 fig 2), one of which has 36 student places, and the other 24 places, 



