Nature . NO. I 52 I, VOL. 59] haviiig been almost entirely destroyed by it in somelocalities. The insect attacks trees and plants in asimilar manner to other Coiciiiiu; attacking a great \ arietyof plants, and spreading over leaves, trunk, branches, andfruit indiscriminately. The effects of various remedies-are discussed by Prof Johnson, spraying with whale-oilsoap, and fumigating with hydrocyanic acid gas, appearingto be the most satisfactory and efficacious remedies^ .78 NATURE [December 22, iJ The accompanying illustrations, selected from those inthe Report, illustrate the mode of applying
Nature . NO. I 52 I, VOL. 59] haviiig been almost entirely destroyed by it in somelocalities. The insect attacks trees and plants in asimilar manner to other Coiciiiiu; attacking a great \ arietyof plants, and spreading over leaves, trunk, branches, andfruit indiscriminately. The effects of various remedies-are discussed by Prof Johnson, spraying with whale-oilsoap, and fumigating with hydrocyanic acid gas, appearingto be the most satisfactory and efficacious remedies^ .78 NATURE [December 22, iJ The accompanying illustrations, selected from those inthe Report, illustrate the mode of applying the latterremedy. We may add that other countries have become alarmedat the ravages of the San Jose Scale in America ; and inGermany, in particular, it is not only absolutely forbidden can form an idea of the large numbers of hybrid orchidithat have been raised by hand. Primary the Soo hybrids from distmct crosses, now onrecord, some 500 are primary hybrids, hybrids of tha. nting with bydrcicy I block 01 2500 pear-trees infested with San Jose Scale. to import any living plants of any kind from America,but even from any other country, without a satisfactory?declaration that they are not of American origin. W. F. K. CURIOSITIES OF ORCHID BREEDING.\ FEW years ago the raising of hybrid orchids was entirely in the hands of a few English experts, butquite recently it has been taken up with great success bymany growers of these rare and beautiful plants, notonly in England, but also on the continent and inAmerica. Consequently orchid hybrids have become verynumerous, while new ones are constantly being broughtto light. Up to the year i860, we find but four floweredhybrids recorded, raised from distinct crosses : duringthe thirty years following the numbers gradually in-creased. until in 1890 there were about 200 it is in the present decade that the most rapidstrides have been made, the numbers having increasedby leaps and bounds until
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