Fig. 17.
Section III.: Mounting Dried Skins of Mammals.—Skins of mammals must be soaked in a strong solution of alum water, and when perfectly soft see that the parts above the lips, eyes, etc., are peeled down quite thin, and that every portion of the skin is perfectly pliable, then it should be moistened as described.
Section IV.: Mounting Mammals Without any Bones.—If the skull of a mammal be desired for a skeleton, a cast may be taken of the entire head before the flesh is removed, by placing the head in a box which will contain it and leave a space around it; pour in plaster of paris to the consistency of cream, until the head is about half covered—which should be placed on the bottom of the box, lower jaw down—let the plaster set; now cover the top surface of the plaster with paint, or oil, or paste paper over it. Then fill up the box with fresh plaster: after this has set well remove the side of the box and open the mould where the joint was made with the paint or paper. Take out the head, and then cut a hole in the mould at the base of the skull, in which the plaster for the head may be poured. Paint or oil the inside of the mould everywhere, fit the pieces together, then tie firmly and pour in the plaster for the mould; then insert the bolt for the head in the hole, and let the plaster set around it. Remove the mould by chipping off pieces with a chisel until the paint surface is exposed. If the head be large and heavy, a large ball of excelsior, in which the bolt is firmly fastened, may be placed in the centre, but this must be covered with a thin layer of clay to make it impervious to plaster. The lips and other naked spaces must be painted the color of life, with paint mixed with varnish, first filling out the imperfections with paraffine wax. Casts may be taken of the larger in wax, making a mould in plaster.
CHAPTER IX.—MOUNTING REPTILES, BATRACHIANS, AND FISHES.
Mounting reptiles, batrachians, and fishes as collected in this department is scarcely a part of taxidermy. I shall only give general instructions regarding mounting some species. Snakes may be readily skinned by cutting a longitudinal insertion about a fourth of the distance down from the head on the lower side where the body begins to enlarge, near its greatest diameter; then the skin may be speedily taken off both ways. When the vent is reached the skin comes away harder, but in order to make a perfect piece of work it must be skinned quite to the end of the tail, even if it splits open; the eyes must be removed from the inside of the head. The skin on the top of the head cannot be removed in this class of animals, leaving the jaw and skull. Cover well with preservative, and turn the skin. To mount, two ways are practised, one with plaster, in which the orifice on the inside and the vent are sewed up, and the plaster poured into the mouth until the snake is filled. It is well, however, to place a copper wire the entire length of the animal to strengthen it; then before the plaster is set, place the snake in the proper attitude. This kind of work requires practice, as you must be careful of the attitude in which you wish to place the animal, as the plaster begins to set quite quickly; to make it set more slowly, however, mix in a little salt. The mouth should be filled up with clay or plaster. Care should be taken that water does not accumulate in any portion of the skin, and it should be perforated with an awl occasionally to allow the water to escape. The skin of a snake may be filled with papier-maché by working small pieces downward; then insert a wire and place into position. The skin requires some time to dry, and in both cases place the mounted reptile in a dry place, where it will rapidly dry, as the skin is liable to decay if kept in a damp place.