SCIENTIFIC AMERICAN SUPPLEMENT NO. 803
NEW YORK, May 23, 1891
Scientific American Supplement. Vol. XXXI., No. 803.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
THE GREAT EQUATORIAL OF THE PARIS OBSERVATORY.
LILY OF THE VALLEY.
REPORT ON INSECTS
THE ONION MAGGOT.
Phorbia ceparum (Meig.)
THE CABBAGE BUTTERFLY.
Pieris rapae (Linn.)
THE APPLE TREE TENT CATERPILLAR.
Clisiocampa Americana (Harr.)
THE FOREST TENT CATERPILLAR.
Clisiocampa disstria (Hübner.)
THE STALK BORER.
Gortyna nitela (Gruen.)
THE PYRAMIDAL GRAPEVINE CATERPILLAR.
Pyrophila pyramidoides (Guen.)
THE GRAPE BERRY MOTH.
Eudemis botrana (S.V.)
THE CODLING MOTH.
Carpocapsa pomonella (Linn.)
THE CABBAGE LEAF MINER.
Plutella cruciferarum (Zell.)
THE GARTERED PLUME MOTH.
Oxyptilus periscelidactylus (Fitch.)
THE BREEDS OF DOGS.
POINTERS.
RESTOCKING THE SEINE WITH FISH.
MODERN ARMOR.
THE COMPRESSED AIR SYSTEM OF PARIS.
THE BUILDERS OF THE STEAM ENGINE—THE FOUNDERS OF MODERN INDUSTRIES AND NATIONS.1
IMPROVED HAND CAR.
THE CONIC SECTIONS.
TABLE OF ATOMIC WEIGHTS.
(Issued December 6, 1890.)
THE TANNING MATERIALS OF EUROPE.
PHYSIOLOGICAL.
PATHOLOGICAL.
AN APPARATUS FOR HEATING SUBSTANCES IN GLASS TUBES UNDER PRESSURE.1
TESTING CEMENT.
THE SCIENTIFIC AMERICAN Architects and Builders Edition
$2.50 a Year. Single Copies, 25 cts.
Building Plans and Specifications.
THE Scientific American Supplement.
PUBLISHED WEEKLY.
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A New Catalogue of Valuable Papers
Useful Engineering Books
MUNN & CO., 361 Broadway, New York.
PATENTS!
MUNN & CO., Solicitors of Patents, 361 Broadway, New York.
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