2CO 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. 



13. Potash Solution. 



Dissolve 5 grammes of potassic hydrate in 100 cubic cent, 

 of water. 



14. Schultz' 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. 



15. Silver nitrate, Solution of. 



Dissolve 0-5 grammes of silver nitrate in 100 cubic 

 cent, of distilled water. Keep in an opaque stoppered 

 bottle. 



16. Sodic Chloride, Solution Of. (Normal saline solution. 

 Salt solution.) 



Dissolve 7 '5 grammes of sodic chloride in 1 litre of dis- 

 tilled water. 



