INJURIOUS INSECTS OF 1909 AND IQIO. £7 
door is kept also in place by the pressing of the outer door against 
these buffers. 
There are seven trays, each of which slides, after the manner 
of a drawer, on a small tin shelf on each side of the interior of the 
cabinet. The shelves are 1% inches wide. The tubular indicator 
is 3 inches long, and consists of a bent glass tube, the top of which 
enters the case just below the shelf of the lowermost drawer, and 
the bottom of which enters flush with the bottom of the reservoir 
for liquid. The connections for the indicator are made with plaster 
of Paris. The wires of the protecting screen are soldered to the 
side of the case. The drawers are 1634 inches wide, 18 inches from 
front to rear, and 1 inch deep. The apartments vary in width ac- 
Fig. 68. Details of trays of Franklin vial case. 
cording to the lengths of the vials to be placed in them. Down 
the center of each drawer, running from front to back, on top, is 
a horizontal strip of galvanized iron, which holds in place the top 
of each partition. This strip is 1% inches wide. The seven draw- 
ers are lettered in front from A to G, and the numbers on the par- 
titions of each drawer run along the horizontal strip which runs 
across them above. This numbering and lettering is for the pur- 
pose of making it possible to ‘“‘accession” the material and keep 
it in known order. 
