SCIENCE AT THE UNIVERSITY OF CHICAGO. 787 



style harmonize admirably with, those of the other buildings 

 upon the grounds. It is, however, far heavier and stronger in 

 construction than the others; the interior wainscotings are in 

 marble; the first-floor laboratories are provided with piers of 

 masonry in addition to the heavy slate wall shelves which are 

 found throughout the other portions of the building. The ob- 

 ject of this heavy construction is to minimize the jars and dis- 

 turbances from outside, which would otherwise seriously inter- 

 fere with the delicate manipulations to be conducted, and the 

 minute movements and vibrations to be studied. One striking 

 constructional feature which adds largely to convenience is the 

 presence of ducts and channels between walls and in the floors, 

 so that pipes can be laid from any part of the building to any 

 other without difficulty. Elementary students work upon the 

 third floor, senior college students on the second, while the first 

 floor is devoted to research work. The more notable features 

 of the department's work are naturally upon this floor. The 



FIG. 3. KYERSON PHYSICAL LABORATORY. 



machine shop, under the direction of an expert mechanic with 

 two trained men for helpers, allows the manufacture on the 

 ground, under the eye of the investigator, of instruments needed 

 in pursuing any study. This shop is fitted up with all needed 

 machinery, supplied with power, and has connected with it a 

 fully stocked supply room. Adjoining it is a students' work- 



