Evening star., 1923-03-11
non-commissioned officers Of all the
troops are eligible for the course.
National Museum Collection.

National Museum Collection.
Boy Scouts are among the chief
beneficiaries of the recent new ar
rangement at the National Museum,
whereby all the BIRDS mammals, in
sects, etc. of the District and Of this
one collection for easy comparison
and study. Rooms A and Al on the
main floor have been set aside for
this purpose. The large number of
scouts who visit this exhibit every
week is testimony to the wisdom of
the museum management in under
taking such an arrangement. Scouts
seeking the merit badge in bird study
have there most excellent oppor-
tunity to become acquainted with all
the birds that frequent this section
scouts from other towns would turn
green with envy if they could know
the advantage that fall to the boys
OF the capital city.
New Merit Badges.
To the sixty-one merit badges al
ready available as advanced work
for Boy Scouts who have obtained
the rank of first class. national head
quarters has recently added two
more. They are for entomology and
foundry work, and the requirements
necessary for each to entitle scout
to wear the badge are as follows:
Entomology. The candidate shall
ner and show to him the natural sur
roundings in which certain specified
insects live. and shall find and dem
onstrate living specimens of the in
sects. telling something of their
habits or of the nature Of their fit
ness for life in that particular en-
vironment. The insects shall be
chosen by the examiner at random.
2. Recognize as such specimens of
any of the following orders of insects
portant characterizations by which
they can be distinguished: Diptera,
Lepidopters, Coleoptera. Hymenop-
terra, Orthoptera, Hemiptera
3. Make a collection of fifty species
of insects. This collection will be
judged upon three points-D Neat
ness of arrangement; t2) perfect con-
dition of the specimens. clean, un-
broken and properly mounted; co
adherence to the following rules: %
male and two female specimens.
when they can be found without too
much difficulty: t2) neat written
or typewriter label. stating the
name Of the species teither common
name or scientific, or both), to be
pinned on the left of or above the
row of specimens OF each species: CD
the species to be arranged by fami-
lies and orders and scientific name of
each family and order found in text
labels: ca entomology pins to be
used when obtainable instead of COM
mon pins: CD each pin to bear a
small neat label, stating the. place
and date Of capture of the Specim
4. Give evidence that he had bred
through all its life stages from egg
or young larva to adult at least one
species of insect. Mosquitoes. blow
flies. cabbage butterflies and fruit flies
are suggested as easy species to rear.
I. fa) Make a freehand working
drawing of a flask used for bench
molding in the foundry.
(b) Describe same flask.
. (a) Show by section sketch
mold of a plate 12 inches long. 6
| inches wide, I inch thick with gate
and vents.
| Cb) Construct the mold.
8 Make a perspective sketch of a
pulley inches in diameter, o-inch
face. the center to be cored by use
of core prints.
core box as per sketch outlined in
| question 3: use shriuhage rule for
| gray iron. Change measurements to
allow for finish all-over casting and
proper draft for removing pattern
| from mold.
! ;. Describe how i cupola operates
| and assist in the pouring Of hot
metal into the above two moldS.
+. (a) Describe process for clean
| ing one of the above castings when
removed from mold.
| (b) Clean one of the above cast
| ings.
+, Z Describe the properties in sand
that are best suited for foundry use
| and tell how to prepare same for use.
s. What important safety first pre-
caution should be taken to protect
! the workers in a foundry by the en-
ployer--by the employe?