ANALTSIS of VAI.ERIAN HOOT. J,;5^ 



Jopped, that its branches may not spl-ead so as to be injuri-* 

 ous, 



Mr. Hubert, counsellor of the bailiwick of Iphofen, in andt'hehdjH 

 Franconia, says, in a paper on the cultivation and use of 

 the poplar, that it may be planted to support the hop, and 

 would be an udvantageous substitute for the poles usually 

 employed, which occasion a considerable consumption of 

 wood. 



The poplar, particularly the Carolina, populus angulaia., Carolipa pbfr- 

 grows iu the poorest soilj its leaves are good food for cattlej '^'^ 'T^i'T'* 

 and its wood is employed for various purposeSi^ Much 

 would be saved therefore by employing it in our hop- 

 grounds. We may presume it would not deprive the hop 

 of its nutriment; arid its leaves, after having sheltered tl>6 

 hop from injurious windsj would serve as mauuro when they 

 fell. 



Every species of poplar does not appear to be equally but perhap? 

 tvell adapted to the support of the hop. The Italian poP" Je^lble'''"^"^^^" 

 lar, populus fastigiata, perha])s deserves a preferenc>e. 

 Beside its growth being very rapidj as it attains the height ^ts advantages-. 

 of 60 or 70 feet in 20 yearsj its branches do not spread so 

 much as those of other species, if baiked a twelvemonth 

 before it is felled, or indeed when cut down if it be at the 

 time the sap is rising, its wood acquires great hardness, and Woo^, 

 it is not liable to be injured by the worm. As fuel indeed 

 its quality is but indifferent, as it does not afford much 

 heat. 



XIV. 



Analysis of the Root of Valerian: ly Mr. Trommsdorff*^ 



Ti 



HE root of valerian, Valeriana officinalis L., loses 0"75 by Valerian rcjol 

 drying. 'Twelve pounds of the dried, or 48 of the fresh root, /ry^ng. 

 distilled with water, yield 2 ounces of volatile oil. This Essential oil; 

 oil is very fluid, and of a greenish cast. Its smell is strong, 

 penetrating, and more caraphory than that of the root. Its 

 spec, grav., at 20° R. [77° t'-]' '^ 0*934. Its taste is aroma- 

 tic, and caraphory, but not burning. The action of light 



• Annales dc Ghimie, vol. LXX, p. 95. 



turns 



