RECEIPTS. 97 



The wax is first melted, and then the resin ; the ochre is then 

 added in small quantities, and stirred quickly with a spatula each 

 time. When all the ochre has been added, it must be allowed to 

 boil six or eight minutes ; the turpentine is then added, and briskly 

 stirred with the spatula, and continue to boil it. There is con- 

 siderable risk of the mixture taking fire, and should it do so, the 

 lid must immediately be put on the vessel to extinguish it. 



To ascertain the consistence of the luting, a little must be, from 

 time to time, dropped on a cool plate, or flat piece of iron. If it 

 is too*soft, more of the ochre must be added to it ; and if too hard, 

 additional wax and turpentine. 



TOW AND FLAX SLIVERS. 



These are fillets of prepared tow and flax, of from one to three 

 inches in breadth. They are extremely uniform in their thick- 

 ness, being made to weight, and can easily be procured from any 

 flax-spinning mill, at a moderate price per pound weight. 



METHOD OF MAKING ENAMEL-EYES FOR ANIMALS. 



Much of the character and expression of animals depends upon 

 their eyes ; it will, therefore, be evident that great attention is 

 necessary in the artifical imitation of these. 



In this operation, a pipe of baked earth is used, or a tube of glass 

 six or seven inches in length, at the end of which a little white en- 

 amel is placed. This is placed to the flame, so that it may be 

 blown. This enamel forms a globe, whose dimensions depend 

 upon the quantity of air introduced. When this globe is of the 

 size wished, we place in the middle, and perpendicularly to the 

 point of the pipe, the quantity of enamel necessary to form the 

 enamel. The second enamel is then incorporated with the first 

 by presenting it to the flame, while attention is paid to turn the, 

 pipe gradually round, so that the enamel may diffuse itself 

 equally, and the iris be exactly circular. If it is required that 

 this iris should be of various colors, like thai of man for ex- 

 ample, small filaments of enamel are distributed in diverging rays 

 of the suitable color ; the eye is then placed in the flame, until 

 these have incorporated with the iris, after which the pupil is 

 placed as before directed, and the glass applied as before directed. 



During this operation, the globe is almost certain of sinking 



