524 ?
A few Grammes each of Potassium Nitrate and acetate.
(d) Wash superficially in water.
(e) Place in solution 'E' (as above) for 48 to 72 hours.
(f) Transfer to solution 'F' (as above) for 48 hours, and subsequently work up the specimen gradually into pure glycerine for permanent preservation.
As already mentioned, the process with such tissues as the intestine has to be carried out rapidly. The gradual transference to glycerine must, however, be done more slowly in order to prevent as far as possible the occurrence of shrinkage.
In conclusion, it will be found that during the first few weeks after the preservation of the Specimen in pure glycerine, the Natural colours of the tissues will improve. This is my general Experience. So far, I have taken no precaution to prevent exposure to light or new sunlight. The process is Not an expensive one, as the majority of the...