270 APPENDIX. 



To imbed an object, scoop a hole in a bit of the paraffin, 

 place the object (the surface of which must be dry) in 

 this hole and fill up the latter with some melted paraffin. 



12. Pasteur's Solution. 



See note, p. 6. 



1 3. Potash Solution. 



Dissolve 5 grammes of potassic hydrate in 100 cubic 

 cent, of water. 



14. Schultz's Solution. 



Dissolve some zinc in hydrochloric acid; permit the 

 solution to evaporate, in contact with metallic zinc until 

 it has attained a syrupy consistence. Saturate the syrup 

 with potassic iodide, and then add enough iodine to 

 make a dark sherry-coloured solution. The object to be 

 stained must be placed in a little water, and then some 

 of the above solution added. 



1 5. Silver Nitrate, Solution of. 



Dissolve 0*5 grammes of silver nitrate in 100 cubic 

 cent, of distilled water. Keep in an opaque stoppered 

 bottle. 



1 6. Sodic Chloride, Solution of. (Normal saline solution. 

 Salt solution?) 



Dissolve 7-5 grammes of sodic chloride in i litre of dis- 

 tilled water. 



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