Directions for Collecting and Preserving InsectsRiley, Charles V. (Charles Valentine)
Science
Directions for Collecting and Preserving Insects
Riley, Charles V. (Charles Valentine)
Insects -- Collection and preservation
In general I indorse the system of labeling suggested in the above
condensation from Mr. Schwarz, but there is no particular disadvantage,
and in fact many advantages, in special cases, in a larger label or in
folded labels. Particularly in visiting large foreign collections I have
found it convenient to use large labels of thin paper which will contain
a good deal of information closely written in pencil and bear folding
several times, so as not to occupy more than the ordinary label space
when pinned to the specimens. This involves detaching the label when the
specimen or species comes to be studied, but this additional labor is
insignificant compared with the large amount of valuable information
which in time is thus brought together in condensed availability for the
student; for brief notes of opinions of experts, of comparison with
types, of special studies, of reference to descriptions, etc., may thus
be all brought together. Where there is not room to indicate the
authority for a determination on the upper side of a label, I also find
it convenient to do so on the lower side.
[Illustration: FIG. 116.--Cabinet for apparatus used in mounting and
labeling. (Original).]
_Labeling alcoholic Specimens._--Alcoholic specimens, including
alcoholic biologic material and collections of Arachnida and Myriapoda,
are well adapted to the labeling system, as the vials are always of
sufficient size to allow the insertion of one or more labels large
enough to contain a pretty full record of the specimen. The label may
consist of a number referring to notes, or of a number together with the
other data indicated for the systematic collection. The label in my
experience is preferably written in pencil, which, in alcohol, is
practically permanent. Waterproof inks are sometimes used, and of these
the oak-gall ink is undoubtedly the best. Dr. George Marx, in labeling
his Arachnida, uses onion-skin paper and waterproof ink, such as
Higgins's drawing ink. There is some danger, in placing a label in a
vial, of its settling against the specimen and injuring it. This,
however, can generally be avoided if a little care is used. The label
may be long and narrow and folded lengthwise so as to occupy one side
only of the vial, or short and inserted in such manner that it will pass
around the inside of the vial, where it will be held by the natural
adhesion to the glass in the upper portion of the vial, as shown at Fig.
114.
_Cabinet for Apparatus._--The work of preparation of insects for the
cabinet may be greatly facilitated if a convenient case is provided with
drawers and compartments for the keeping of pins of different sizes,
labels, braces, implements, tweezers, dissecting apparatus, and the
like, with microscopical supplies--slides, cover glasses, mounting
media, etc. I present a photograph of a cabinet of this sort used in my
earlier work and found very convenient and serviceable (Fig. 116).
INSECT BOXES AND CABINETS.
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