Kill the specimen with chloroform and inject with the five per cent.
formalin, or the mixture of formalin and glycerine, as for the muscles.
(It is an advantage if the preliminary examination of the viscera can be
done in a perfectly fresh, uninjected specimen; such a specimen can be
kept but a day or two, however. After one day’s examination the skin may
be removed and the specimen placed in two per cent. formalin; it will
usually be fairly well preserved by this, though the formalin is too
strong to make the later dissection pleasant. The specimen cannot be
preserved in this manner unless the skin is removed, and a sufficient
quantity of formalin used.)