44 BULLETIN 314, TJ. S. DEPAETMENT OF AGEICULTLFEE. 



6 tin boxes, 5 centimeters in diameter by 3.5 centimeters deep. 



1 metal kitchen spoon. 



1 -J-pint iron retort. 



1 piece iron tubing, 30 incbes long. 



1 copper still, with steel clamps, inside dimensions 6 by 3-J incbes. 



1 ring burner to fit copper still. 



1 10-centimeter steel spatula. 



1 crucible tongs. 



1 hammer. 



1 f-inch cold chisel. 



1 1-i-inch stiff flat brush. 



1 triangular file. 



1 small round file. 



1 set of cork borers, Nos. 1 to 12. 



1 brass filter (vacuum) pump. 



1 piece of wire, 20 centimeters long (No. 12 Brown & Sharpe gauge). 

 3 chemical thermometers reading from —10° G. to 110° C. 



3 chemical thermometers reading from 0° G. to 250° C. 



2 chemical thermometers reading from 0° C. to 400° C. 



4 hydrometers, 0.800 to 0.900; 0.900 to 1.000; 1.000 to 1.200; 1.200 to 1.400. 

 1 hydrometer jar, 350 by 50 millimeters. 



1 special pycnometer. 



6 250 cubic centimeter beakers, low form. 

 6 150 cubic centimeter beakers, low form. 



2 800 cubic centimeter beakers, low form. 



2 400 cubic centimeter beakers, tall form, without lip. 

 1 10-centimeter crystallizing dish, deep, straight sides. 



1 5-centimeter crystallizing dish. 



12 100 cubic centimeter Erlenmeyer flasks. 



2 150 cubic centimeter Erlenmeyer flasks. 



2 500 cubic centimeter flasks with side neck for filtering under pressure. 

 6 250 cubic centimeter Engler distillation flasks of special dimensions. 



1 short condenser. 



1 separatory funnel with stopcock. 



4 500 cubic centimeter wash bottles, with tubulated glass stopper ground into neck 



for solvents. 

 1 1,000 cubic centimeter wash bottle for water. 



6 100 cubic centimeter glass cylinders, graduated to 1 cubic centimeter. 

 6 25 cubic centimeter glass cylinders, graduated to 0.2 cubic centimeter. 



3 10 cubic centimeter glass cylinders with ground-glass stoppers graduated to 0.2 



cubic centimeter. 

 1 150-miln meter desiccator with porcelain plate. 

 1 filter tube for Gooch crucible 3.9 centimeters in diameter. 

 1 object glass. 

 1 freezing apparatus. 

 1 glass connecting tube. 

 1 pound of light glass tubing, assorted. 



1 pound of glass rods, assorted. 



2 rubber stoppers, No. 8, with one hole. 

 2 rubber stoppers, No. 1, with one hole. 



5 pounds of rubber gas tubing, I inch internal diameter. 



1 foot of rubber tubing, 1 inch diameter, for Gooch crucibles. 

 5 pounds of heavy asbestos paper. 

 Corks, assorted. 



