(296) 



6430- White hellebore. — The rootstock and roots of Veratrum album L. (See 

 No. 4796). One of the most largely used insecticides for vegetable para- 

 sites. 



6431. Staphisagria. Stavesacre (See No. 2517). Largely used for destroying 



vermin of the scalp. 



6432. Larkspur. Delphinium (See No. 6083). Used like the preceding. 



6433. Black hellebore (See No. 2522). Used like the preceding. 



6434. Cocculus indica. Fish-berries (See No. 2544). Used like the preceding, 



and also to stupefy fishes. 



6435. Ailanthus leaves. Tree-of-Heaven. — The leaves of Ailanthus glandulosa 



Desf. {Simaroubaceae — Quassia Family). Native of China and planted in 

 the United States for ornament. The leaf extract is fatal to flies and other 

 insects. 



6436. Tobacco stems. — The stems of Nicotiana Tabacum L. (See No. 2066). 



The extract is fatal to a great variety of troublesome insects. Presented 

 by the Hammond Slug-shot Company, of Fishkill, New York. 



6437. Powdered tobacco. — The preceding in the powdered state. 



6438. Scrophularia powder. An insecticide containing the preceding. Same 



donor. 



6439. Grape-dust. — An insecticide specially valuable for destroying grape-vine 



insects, and containing powdered tobacco. Same donor. 



6440. Slug shot. Another insecticide of similar composition. Same donor. 



6441. Sheep-wash. — An insecticide containing extract of tobacco, and used to 



destroy ticks on sheep. Same donor. 



6442. Dalmatian insect flowers of first quality. — Consisting of the unexpanded 



flower-heads of Chrysanthemum cinerariaefolium Trev. {Carduaceae — 

 Thistle Family). Native of southeastern Europe and adjacent Asia. 

 A standard insecticide for bed-bugs and other insect vermin. Presented 

 by McCormick & Company, of Baltimore, Maryland. 



6443. Dalmatian insect flowers of second grade. The half-opened flower-heads of 



the preceding species. Same donor. 



6444. Dalmatian insect flowers of third grade. — The expanded flower-heads of the 



same. Same donor. 



6445. Dalmatian insect powder. — The powdered flower-heads of the preceding 



species. 



6446. Insect flower stems. — The stems of the preceding species, having very little 



insecticidal activity but largely used as a fraudulent adulterant of, or sub- 

 stitute for the flowers. 



6447. Powdered insect flower stems. — The preceding, in the powdered state, 



ready to be sold for insect powder. 



6448. Hungarian daisies. Ox-eye daisies. — The flower-heads of Leucanthemum 



Leucanthemum (L.) Rydb. Native of Europe and an abundant weed in 

 the United States. Used as a fraudulent adulterant of insect powder. 



Woods and Wood Products 



Our collection of timber-woods and their products can 

 scarcely be considered as more than indicative of the 



