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Scientific American, Vol. 73, No. 20 (November 1895) (1895)
leaf 4
osition, fixes itself in great numbers upon the young branches of the above-named plants. These insects secrete a resinous and waxy substance which solidifies, in imprisoning the insects, and forms a thick Fig. 1.-T00LS AND APPARATUS USED IN THE crust that covers the epidermis of the branch attack-… … Fig. 2. MADAGASCAR LAC. Fig. 3.-METH0D OF WASHING LAC. Fig. 4 PURIFICATION OF T.AC. © 1895 SCIENTIFIC AMERICAN, INC.Lac · Apparatus · Connected · Machine · Ment · Munn · Scientific American · Shifting lever · Shaft carrying · Torpedo boat · Car dumping · Soil pipes · Wood pulp · Perspective elevations · Pipe drains · Safety appliance
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