THE XOTJNG SCIENTIST. 
129 
this matter who have ability to place on paper 
their ideas of what combinations of letters ought 
to he. It is impossible to publish everything 
sent to us, but we hope our young readers will 
not feel aggrieved if they do not see the result of 
their efforts appear. It is not because we do not 
appreciate their efforts that they do not appear in 
print, but simply because we have not space at 
our command to accommodate all that is sent us. 
This, however, should not discourage our young 
people from sending in their contributions, as ev- 
erything sent us is a clear gain to them in practice 
and experience, and by continually "pegging" 
away, they will be sure to accomplish something 
before a great while that will compel us to recog- 
nize their efforts. The illustration shows the 
monograms sent. 
. The monograms J. H. P., T. W. T.. and N. S. 
P., were sent us too late for the March number, 
and are in compliance to requests made in Feb- 
ruary Young Scientist. 
42. Inlaid Monogram.— I herewith send you a 
design for an inlaid monogram, for E. B.'s con- 
sideration. I think it fully complies with the 
conditions of his request. It may be cut with 
either a Challenge, Dexter, or a Barnes scroll- 
saw. I would suggest that the background of the 
inlay or body of the box be made of walnut, and 
the inlay of rock-maple; or the box might be 
made of rock-maple, and the inlay of amaranth 
or mahogany. If ebony is used for the body of 
the box. the inlay should be of ivory, which may 
De very easily cut, if care is taken while sawing 
to not feed too rapidly. A mahogany background 
would look very well with brass inlay, which is 
almost as easily cut as ivory. If E. B. can afford 
it, however, I would advise him to get fine rose- 
wood for the body of his box, and inlay it with 
silver. The rosewood may be veneer, glued on a 
pine or whitewood base ; then the silver need be 
no thicker than the veneering. I shall be pleased 
to give E. B, any further information I possess 
on this subject, if he desires it.~BosTONiAN. 
43. OvEELAY DESIGNS.—" Bostoniaii " sends us 
six designs for overlay work for panels, etc., 
which we publish on page 108 of the present issue, 
along with description and instructions for mak- 
ing. 
44. CoLOK Language.— (1) Properly speaking, 
there is no color language. Colors are simply 
considered as expressions of sentiment when 
used for that purpose, and are defined as fol- 
lows: Blue means love: Violet, friendship; a 
bouquet of violets, therefore, if received from a 
lady, means that no love is to be expected, but 
friendship only. Bed means ambition; Indigo 
Blue, the spirit of rivalry; Green, the love of 
change— fickleness ; receiving a love-letter on 
pale green paper, or sealed with a green wafer or 
sealing-wax, means that the love-match is to be 
broken off. Yellow is the color of paternity and 
maternity, under the pretext that it is the yellow 
ray of the spectrum which causes germs to de- 
velop. So much for the colors of the spectrum. 
In regard to other colors, black means favorit- 
ism: White, unity— universality ; Gray, power; 
Silver Gray or Bluish Gray, feeble love ; Lilac or 
Lavender, feeble friendship; Brown, prudery; 
Pink, modesty; Pale Pink, false shame. (2) Th& 
type-writer is a machine for printing with mova- 
ble type. The first patent in the United States- 
for a practical machine of the kind was issued in 
1868. The types were arranged in parallel rows, 
and the impression given by the striker or 
plunger, the operator having but to depress keys 
arranged with reference to rapidity of motion in 
the necessary order. In other type-writers the 
printing types are placed on the periphery of a 
wheel, and brought to the printing point by revo- 
lution. In most varieties the types are at th© 
end of levers, so arranged as to strike at a com- 
mon printing point, and the paper is passed un- 
der that point by ordinary clockwork machinery^ 
45. Painting on Satin.— We refer you to an ar- 
ticle on tills subject in the present number, on 
page 119. We are indebted to the Art Interchange 
for this paper, which we think is almost exhaus- 
tive on this question. 
46. Kevenue Marine Service.— To obtain an 
appointment as a cadet in the Revenue Marine^ 
Service candidates are obliged to undergo a se- 
vere examination. The candidate's age must be 
between eighteen and twenty-five years, and no 
person will be appointed under any circumstances- 
whose age is not within tliese limits. He must 
furnish satisfactory evidence that he is of good 
moral character, and of sober and correct habits.. 
He is then required to pass an examination as 
to his physical qualifications, Avhich is made 
by a board of medical officers from the Marine 
Hospital Service, who are designated by the Sec- 
retary of the Treasury. If the candidate is found 
to be of vigorous constitution, physically sound, 
and not less than five feet in stature, he is sub- 
jected to a written examination in reading, writ- 
ing, spelling, arithmetic, algebra, geography,, 
history and grammar, before a board of officers 
also designated by the Secretary of the Treasury.. 
A standard of proficiency is fixed by this boards 
and if the candidate falls below this standard, he 
will be rejected. He will be allowed, however, a, 
second examination at the next annual conven- 
ing of the Board of Examiners, and if he fails in 
this examination also, his rejection will be final.. 
Candidates wlio attain the required standard in 
both the physical and mental examinations will 
be eligible for appointment, and will be placed 
upon a list in the order of proficiency exhibited in 
their examination. From this list names will be- 
taken in regular order for appointments to fill 
existing vacancies, such as may occur before the 
class for the year is made up. Passing the re- 
quired examination does not guarantee a candi- 
date's appointment, hoAvever, as the list is not 
likely to be exhausted in making up the class. 
In the physical examination special attention if> 
given to the visual powers of the candidate, and 
more particularly to color-blindness and the de- 
fects in aeuteness of vision. The academical 
examination is in arithmetic, in notation and 
numeration, compound numbers, properties of 
numbers, fractions, ratio and proportion, per- 
centage, interest, discount, mensuration and 
evolution ; in algebra,, to equations of the second 
degree: the whole English grammar; the history 
of the United States; a theme upon given sub- 
jects as a test of penmanship and composition ; a. 
written exercise in spelling, and a general ac- 
quaintance with the geography of the world. 
47. Human BoNES.— According to Brande there 
are 260 distinct bones in the human skeleton, 
counting everything. An excellent authority — 
Willard Parker— in Johnson's Cyclopedia, says: 
" The entire skeleton of the adult consists of 204 
distinct bones ; if the teeth and certain accessory 
bones, termed sessa moid, are included, the num- 
ber is 246." The difference in these statements 
rests in the fact that what some persons term 
bones, others do not. It is generally understood. 
