261] APPARATUS FOR GENERAL USE 



77 



3 Beakers, wide form of 2, 4, and 6 oz. capacity. 



3 Glass rods, rounded at the ends, 7, 6, and 3 inches 

 in length. 



1 Piece of platinum foil, 1 x i^ inch. 



2 Pieces of platinum wire, mounted (7). 

 1 Black's blowpipe, japanned tin. 



1 Pipe-clay triangle, 2 inches along the side. 

 1 Wash bottle, to be made from 18 oz. flask (10). 

 1 Retort stand. Upright rod 17 inches, foot 6x3 inches, 

 with three brass rings, the largest 3 inches across. 



1 Wooden filter-stand, 1 2 inches high, with two rings. 

 1 Pair polished brass crucible tongs, 6 inches long. 

 1 Small horn spatula, 3J inches long. 

 1 Oval wicker draining basket, 10x8x4 inches. 

 Cut filter-papers, 4^, 3 J, and 2| inches across. 

 1 White porcelain tile, 4^ inches square. 



List of Special Aparatus for Sections I., II., and III. 



261. This apparatus need not be supplied to each 

 student, but several sets should be kept 



1 Nest of three or four small brass cork-borers. 



1 Triangular file. 



1 Thin round file. 

 Several lengths and pieces of hard glass-tubing, about 

 £ inch internal diameter. 



1 Gross ignition-tubes, 3 inches long, J inch across. 



1 Gross corks, as free as possible from holes or cracks, 

 varying from § to j inch across. 



1 Small metal clamp in a boss .fitting the retort stand 



(% 15)- 



i Stoppered bell-jar, 30 oz. capacity. 



4 Glass cylinders on feet with ground edge at top, 

 8 inches high, if inch across. 



4 Similar cylinders, 6 inches high, i\ inch across. 



