LABORATORIES AND THEIR EQUIPMENT 



8l 



tinted white or nearly so, and the furniture made of light- 

 colored wood. Floors should be solid and dust kept out 

 as far as possible. Unless the windows are very large 

 it is best to use but one row of tables, of which, for 

 elementary work, the most efficient and economical dis- 

 tribution known to me is that shown in the accompany- 

 ing figures (Figs, i, 2). Each table stands opposite a 



W 



G.T. 



,,,,,, SCALE Of FEET 



12 3 i5 G 8 10, 



15 



FlG. 2. Plan for an oblong laboratory, lighted on a long and a short side. 



Lettering as in Fig. I. 



window, and is used by five students (or three if room 

 allows), two on a side and one at the end. Rooms are 

 often of square shape and lighted from two adjacent 

 sides, in which case the arrangement shown in Fig. i is 

 good. For a long room the most economical arrangement 

 is that shown in Fig. 2. Where more than one row of 

 tables must be used, it is best to place them in a second 

 row, each exactly in line with one in the first and four 

 feet from it. The tables may be perfectly plain, of 



