LACQUERING MICROSCOPE TUBES AND STANDS. 151 



the brush should be very soft, and for large articles flat. For 

 smaller articles, a round camel hair or sable pencil will answer. 

 The tube is removed from the water, wiped, and held for a moment 

 to ensure dryness, and the lacquer then applied as rapidly and 

 smoothly as possible. The brush should be drained on the side 

 of the dish, in order to avoid getting too much of the liquid on 

 the object at once. If a second coat is deemed necessary, let the 

 first become quite dry before applying it. If the tube is not warm 

 enough, return it to the liot water for a few moments and dry 

 carefully. The water should not be too hot, or there is danger of 

 blistering the lacquer. From 150^ to 160° F. is a good tempera- 

 ture. In applying the lacquer, care should be taken not to rub 

 the object with the brush. Apply it with light strokes, all in the 

 same direction. 

 I. — Pale Gold. 



Shellac, quite clean ... ... i part. 



Ground Turmeric ... ... i ,, 



Alcohol ... ... ..." 4 ,, 



Mix and set aside in a warm place and let stand, with frequent 

 agitation, until the lac is dissolved. Decant the clear liquid and 

 preserve for use. 



2. — Yellow Gold. 



Shellac ... ... ... 25 parts. 



Turmeric ... ... ... 4 ,, 



Dragon's Blood ... ... i „ 



Alcohol, 95^ ... ... 70 „ 



Digest for eight days, with frequent agitation ; decant and filter. 

 3. — Deep Red Gold. 



Spanish Anatto ... ... 2 parts. 



Turmeric, powdered ... ... 30 ,, 



Red, Saunders' ... ... 3 „ 



Alcohol, 95° ... ... 480 ,, 



Infuse in the cold for twenty-four to thirty-six hours, shaking 

 occasionally. Let stand until settled ; then add 



Shellac ... ... ... 60 parts. 



Sandarac ... ... ... 15 „ 



Mastic ... ... ... 15 „ 



Canada Balsam .,. ... 15 ,, 



