THE V-AJLLErr 3sTA. , TTJ3K;A.Xj1ST. 
W. D., St. Louis, Mo.: 
We can supply you with the stationary you 
mention at the following prices : No. 1, $2.50 
per 1000; No. 2, $3.00 per ream, and No. 3 at 
$2,00 per 1000. Let us have your order as 
soon as possible. 
T. N. Newtonville, Mass. : 
We will have bound volumes of the Val- 
ley Naturalist for sale as soon as the 12th 
number is issued, with a table of contents, at 
the small price of $1.25 per volume. 
Ed. Thomas, Kansas City, Mo.: 
Cyanide of potassium is very good for kill- 
ing lace -winged insects, as it preserves the 
color. Put the cyanide in the bottom of a 
vial (we find a quinine bottle very good) and 
cover it with half an inch of dry plaster paris 
then pour a few drops of water on top, just 
enough to cover the top and let it settle till 
the plaster is hard, then keep the bottle well 
corked. 
25,000 eggs of a silk worm weigh one quar- 
ter of an ounce. The worm lives from 45 to 
53 days ; it increases in weight in thirty days 
9,500 fold, and during the last 28 days of its 
life eats nothing. 
We are always pleased to receive ar- 
ticles and. notes of natural science for 
publication from our friends. 
Leuwenhock has computed that 10,000 
threads of the full-grown spider are not 
larger than a single hair of the beard. He 
further calculates that when young spiders 
first begin to spin, 400 of them are not larger 
than one of full-growth— allowing which, 
4,000,000 of a young spider's threads are not 
so large as the single hair of a man's beard. 
Advertise in the only Western Natur- 
alists paper —it has the widest circula- 
tion. 
To observe an eclipse of the sun without 
injury to the eye. Take a burning glass, that 
magnifies very much; hold it before a book 
or pasteboard, twice the distance of its focus, 
and you will see the round body of the sun, 
and the manner in which the moon passes 
between the glass and the sun, during the 
whole eclipse. 
The subscription of the Valley Natur 
alist is only $1.00. 
Among the interesting relics in Paris are 
the celebrated lilacs in the gardens of the 
Luxembourg, which at last accounts were in 
full flower, at the age of 250 years. They 
were planted by Marie de Medicis. Cardinal 
Richelieu was a passionate lover of flowers, 
and among these lilacs he frequently walked, 
plucking the branches with which to decor- 
ate his reception room. There are 80 trees 
in all. 
Agents, this is a splendid chance to 
add another good paying" publication 
to your list, A liberal per centage al- 
lowed. 
" What are those purple posies down by 
the brook?" asks Gus. "If you mean," re- 
plies Clara, "those glorious masses of em- 
purpled efflorescense, that bloom in bosky 
dells and fringe the wimpling streamlets, 
they are campanula rotundiflora." Gus 
plays billiards for a living and Clara goes to 
a girls' college. 
ANNUAL REPORT ON THE NOX- 
ious, Beneficial and other Insect 
of the State of Missouri. C. V. Riley. 
Copiously Illustrated. 1869-76. Bound 
in Cloth. Volumes 1, 3, 5, each $2.00 
Volumes 2, 6, each 2.50 
Volumes 7, 8, 9, each 1.25 
(fgirSAME, paper covers, 25 cents less per 
volume. 
CLASS BOOK OF BOTANY, BE- 
ing an outline of the Structure, 
Physiology and Classifications of Plants; 
with a Flora of the United States and 
Canada. By A. Wood, A. M. 832 pages, 
(not new) Price $1.50 
m 
Advertise in the Valley Naturalist— 
the only Naturalists' paper West of the 
Mississippi. 
A man who didn't advertise. There was a 
great excitement in Chebanse the other day 
over the unexpected appearance of a man 
who had been absent from his home for fif- 
teen years. He had been keeping a store all 
this time on the principle street, but no one 
knew it. He had been mourned as dead. 
ROCEEDINGS OF THE DAVEN- 
port Academy of Natural Sciences. 
We can supply our patrons with the Pro- 
ceedings at the following prices : 
Volume I, Paper Cover $2.50 
" I, Cloth-gilt 3.50 
" I, Tinted Paper 4.00 
" I, " " & 2 col'd plates. 5.00 
Volume II, Subscription to whole vol... 3.00 
" II, Either part seperate 2.00 
FOURTH ANNUAL REPORT ON 
the Noxious and Beneficial Insects 
of the Stat e of Illinois. William LeBaron. 
Neatly Bound, (very rare) $3.00 
NEW YORK MINERAL AGENCY 
14 BOND STREET, 
33- SEYMOUR, ^Q-EHNTT. 
Colleges, Academies, Sefiools and Araatenrs 
SUPPLIED WITH 
CABINETS or SIISTCKLIB SPECIME]SrS 3 
AND WITH FOSSIL S AND SHELLS. 
N. B.—A Large Assortment Constantly on hand. Cabinets Sold on Commission, 
THE VALLEY 
NATURALISTS' 
AGENCY. 
Address : Room 36, 
N. W. Cor. THIRD & PINE STS. 
Saint Louis, Mo. 
We have established this Agency for the convenience of our Western Naturalists, who 
have, no doubt, all been disgusted by the length of time it took for books, reports, etc. — 
ordered from some of the eastern agencies — to reach their destination. Hence the object of 
establishing an Agency at St. Louis, which is centrally located and should receive a goodly 
share of their patronage. 
Postage and Expressage 
On Books ordered from the following list, send 2 cents additional for postage on every 25 
cents, or fraction thereof, in sum total of order made up from books costing not over $3.00 
each. These rates are taken from an average on all the books in the list, but as they vary in 
individual cases, we remit any over-postage received, and if not enough is forwarded we 
send notice of the amount required in addition. 
When the Price is over $3.00 for any one Work, 
Unless specially directed, it will be sent by express, except in instances where it will be 
cheaper to the purchaser to have it sent by mail, in which case the work will be so forwarded 
ivith a bill for postage charged. 
