American journal of pharmacy . he small branches present the silvery epidermis which wemeet with in the small quills. That on the larger branches re-sembles exactly stouter quills of red bark, and where the outercoat has exfoliated, the derm shows the small pock marks orindentation, which are characteristic of the best commercial ? It must be an important question for the physiciau to decide, whether thislarge percentage of vegetable matter, of complex chemical constitution, pro-duces a good or bad result, when received into the stomach of the patient. Iam not aware that we have any reliable i
American journal of pharmacy . he small branches present the silvery epidermis which wemeet with in the small quills. That on the larger branches re-sembles exactly stouter quills of red bark, and where the outercoat has exfoliated, the derm shows the small pock marks orindentation, which are characteristic of the best commercial ? It must be an important question for the physiciau to decide, whether thislarge percentage of vegetable matter, of complex chemical constitution, pro-duces a good or bad result, when received into the stomach of the patient. Iam not aware that we have any reliable information as to the medicinal effectof kinovic and cincho-tannic acids. I find the heart-wood of the tree to be richin kinovic and less so in cincho-tannic acids, forming together rather more thantwo per cent, of the weight of the wood. The leaves contain a large quantityof chlorophyll, affording an alcoholic solution of a beautiful dark green color,rich purple by reflected light. ON THE TREE PRODUCING RED CINCHONA BARK. 35. Tree producing Red Cinchona Bark. 36 ON THE TREE PRODUCING RED CINCHONA BARK. quality,* to which indeed the tree evidently belongs ; and as Ihave the pleasure of presenting specimens to the Museum of thePharmaceutical Society, I need not further describe it in thisplace, except to say that the different portions of the trunk andbranches exhibit the variety of coating usually seen in com-mercial red bark of genuine quality, thus showing that it allproceeds from one tree. The varying size and form of the leaves may be inferred fromthe accompanying woodcut. The largest in my possession, alittlQ imperfect at the apex, measured about nine inches inlength by six in width. The shape of the leaves is that ofCinchona ovata, approaching perhaps more nearly to the varietya vulgaris than to the var. y rufinervis, in which latter the leafappears to be somewhat longer in proportion to its width. Thered bark leaves, however, instead of being ^ subeoriaceous (asin the «
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