 | Peter Lund Simmonds - 1863 - 590 páginas
...Destroyed by the Powder. — The principal insects to which the powder is destructive may be ranged under four classes — first, insects injurious to...a few instances which will sufficiently show what applications may be made of it. Our domestic animals, dogs, cats, fowls, pigeons, &c., are subject... | |
 | 1864 - 382 páginas
...annually in Russia alone is about 500 tons. The principal insects to which the powder of the Pyrethrum is destructive, may be arranged under four classes,...a few instances, which will sufficiently show what applications may be made of it. Our domestic animals, — dogs, cats, fowls, pigeons, etc., — are... | |
 | 1865 - 372 páginas
...annually in Russia alone is about 500 tons. The principal insects to which the powder of the Pyrethrum is destructive, may be arranged under four classes,...a few instances, which will sufficiently show what applications may be made of it. Our domestic animals, — dogs, cats, fowls, pigeons, etc., — are... | |
 | 1867 - 378 páginas
...annually in Russia alone is about 500 tons. The principal insects to which the powder of the Pyrethrum is destructive, may be arranged under four classes,...a few instances, which will sufficiently show what applications may be made of it. Our domestic animals, — dogs, cats, fowls, pigeons, etc., — are... | |
 | 1864 - 738 páginas
...destroyed by t/¡e Powder. — The principal insects to which the powder is destructive may be ranged under four classes : — first, insects injurious...a few instances, which will sufficiently show what applications may be made of it. Our domestic animals, — dogs, cats, fowls, pigeons, etc.,— are... | |
 | 1864 - 574 páginas
...destroyed by the Powder, — The principal insects to which the powder is destructive may be ranged under four classes : — first, insects injurious...fourth, insects injurious to museums of animal and vege. table products, and collections of natural history. We do not pretend to enumerate all the insects... | |
 | 1864 - 574 páginas
...destroyed by the Powder. — The principal insects to which the powder is destructive may be ranged under four classes : — first, insects injurious...fourth, insects injurious to museums of animal and vege. table products, and collections of natural history. We do not pretend to enumerate all the insects... | |
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The principal insects to which the powder is destructive may be ranged under four classes — first, insects injurious to agriculture and horticulture ; second, insects obnoxious to man and his habitation; third, insects destructive to certain substances,... 