THE PREPAKATION OF ANIMAL TISSUES. 67 



with the other ounce. Put this into a bottle. Add 

 the iron mixture, drop by drop, to the ferrocyanide 

 solution, shaking all the time. Mix the naphtha 

 with the alcohol, add the water very gradually, and 

 thoroughly shake the whole. 



PRUSSIAN BLUE ACIDULATED GLYCERINE FLUID. 



(Dr. Beetle's formula.) 



Price's Glycerine, 2 fluid ounces. 

 Tinct. of Sesquichloride of Iron, 10 minims. 

 Ferrocyanide of Potassium, 3 grains. 

 Strong Hydrochloric acid, 3 minims. 

 Distilled Water, 1 ounce. 



Dissolve the ferrocyanide in one half of the 

 glycerine, and the sesquichloride of iron in the other, 

 add the latter drop by drop to the former. Finally 

 add the water and the acid, and to the whole add 

 2 drachms of alcohol. 



NEUTRAL GLYCERINE PRUSSIAN BLUE FLUID. 

 (Dr. Beale's formula.) 



Glycerine, 1 ounce. 



Alcohol, 1 ounce. 



Ferrocyanide of Potassium, 12 grains. 



Tincture of Perchloride of Iron, 1 drachm. 



Distilled Water, 4 ounces. 



Dissolve the ferrocyanide in one ounce of the 

 water and glycerine, add the tincture of iron to 

 another ounce. Mix these solutions very gradually, 

 in a bottle, and shake thoroughly. The iron is to 

 be added to the ferrocyanide solution. Lastly, the 

 alcohol and the remaining water are to be gradually 

 added, with constant shaking of the bottle. 



Specimens injected with this fluid should be 

 preserved, and mounted, in acidulated glycerine. 



