Process for Preserving Preparations or Objects.
Year: 1898

page_text: COMPLETE SPECIFICATION.
Process for Preserving Preparations or Objects.
I, LOUIS BUCHHOLD, of Haberlstrasse 17, Munich, in the Kingdom of Bavaria,
in the German Empire, Manufacturer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
Hitherto preparations, objects and specimens, with the exception of such as are
dry, have been preserved in spirit, in the well known cylindrical glass vessels.
This system, however, has the great drawback that in consequence of the refraction
by the cylindrical glass sides of the vessel, the preparation appears distorted to the
eye, so that exact observation is impossible.
To avoid this, the preparations, or objects, according to the present invention
are hermetically enclosed between a flat glass plate and a concave glass inverted
and cemented over it; or between two such concave glasses cemented together.
This plan has the advantage that the preparations or objects can be clearly
observed from all sides, and are easier to bring into their natural position than
is the case where cylindrical glasses are used; furthermore, the glass plates, or
concave glasses, are much more convenient to handle than cylinders.
On the accompanying drawing one example is shown of the manner in which an
object (a beetle) may be preserved.
Fig. 1 is a plan view of the hermetically closed receptacle;
Fig. 2 is a vertical section of the same, and
Fig. 3 a vertical section of the receptacle, with especially protected glass base-
plate.
The preparations, or object, in this case the beetle a, is placed in a suitably
formed concave glass b, which may if desired be filled with a preservative fluid.
A flat glass plate c, which serves as base when the receptacle is ready, is then
hermetically cemented upon the concave glass b. In, the case of objects of some
length, such as fish, the concave glass can be of long form.
To strengthen the glass plate and protect it against breakage, rings d of paper,
leather or the like may be applied on both sides, and the edge pasted round with
paper or linen.
The interior space within the ring f must, however, be of the same diameter as
the concave glass b, so that the whole space within the glasses may be visible,
in order also to be able to view the object from below.
Instead of cementing a glass plate upon a concave glass, two hollow glasses
may be hermetically cemented together at their edges, after the object, if desired,
immersed in a preservative fluid, has been introduced between them.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
Process for preserving animal and vegetable preparations or objects, consisting
in hermetically enclosing the preparation or object, either dry or in a suitable

page_text: preservative fluid, between two closing glasses, one concave and the other flat,
or both concave, which are cemented together substantially as and for the purposes
herein before set forth.
BOULT & WADE,
Agents for the Applicant.