A Box of Scales and Weights.
A Glass funnel and filtering paper.
Two Glass Rods for Stirring purposes.
A Five-ounce Glass Measure.
A Test tube 3/4 or 1 inch in diameter.
Some Clean Cotton Wool.
Some very fine Wash-leather.
A Support of Wood, on which to cement the speculum, described further on.
All these articles should be perfectly clean and free from dust, and the Glass ones well rinsed with distilled water just before using.
Chemicals.—Nitrate Silver.