Animal Concretions

Concretions of various kinds are occasionally found in the brain, lungs, heart, liver, kidneys, gall-bladder, intestines, and urinary bladder. The stomachs of many animals afford concretions of different kinds, particularly those known under the name of Bezoar Stones; and travellers inform us that stones are met with in the eggs of the ostrich. All of these bodies are interesting and valuable to the natural historian.

Skeletons

Collectors ought not to neglect to preserve the skeletons of the different species of animals. The best way of cleaning bones, is to expose them to the air, and allow the insects to eat off the flesh. This being done, they ought to be washed with sea water, and afterwards freely exposed to the sun. The best skulls are obtained by putting the whole head in rum or whisky, or a strong solutions of alum; and both male and female heads ought if possible to be preserved.