[242] According to Dieterich (Neues Pharmazeutisches Manual, 7. edition page 191) prepared barley meal is obtained as follows: 1 kilo barley flour is firmly pressed into a suitable metallic (tin) vessel, so that it is about ⅔ full and then heated on a water bath for 30 hours in all. After the lapse of 10 hours the powder is removed and ground in a mixer them again placed in the vessel and re-heated for 10 hours. After twice repeating this manipulation, about 900 grammes of a reddish mass will be obtained which is prepared barley meal. [243] Apotheker-Zeitung 1900, page 181. [244] Compare Aufrecht, Pharm. Zeitung 1910, page 558. [245] The absurdity of this process is too evident to need remark; would it not have been better, if the process had not had the sanction of the patent mark? The treatment, which the cacao here undergoes, is so barbarous, that the product must always be spoiled. The only point attained is the complete gelatinisation of the starch, which by further heating is to some extent converted into dextrin. Caramelizing cannot and will not take place by heating gelatinised starch in mixtures with a dry substance, as it occurs in cacao. But in addition, the claim is weak that cacao so mistreated would be especially suitable for diabetics, since cacao serves that purpose a great deal better. The addition of albumin every properly disintegrated is not at all new, for mixtures of albumin and cacao have existed for a very long time.—Editor’s note. [246] Instead of which pure milk powder may also be used. [247] All cacao preparations, to which albumin is added, require a large amount of cacao butter as the albuminoids largely absorb the fat. [248] The composition of the preparation must be stated on the wrapper as such terms as “Natur-cacao” and “Natur-chocolate” are liable to lead the purchaser astray.—Editor’s note. [249] Alfr. Beddies, Ueber Kakaoernährung, Berlin 1897. [250] Plasmon is an albuminoid preparation from milk, to which a little sodium bicarbonate is added to effect complete solution. [251] Somatose is a nutritive preparation made from meat and contains the nitrogenous constituents of the muscle flesh exclusively in the form of an easily soluble albumose. [252] Tropon is a mixture of 2 parts flesh albumin (from muscle flesh and fish) and one part plant albumin. [253] The preparation must also bear on the wrapper a statement of its composition in order not to mislead the purchaser. A. Index to literature. In the following list are specified in chronological order only those works and memoirs which refer to the culture of cacao and the manufacture of cacao preparations. The remaining literature on the subject, so far as it refers to the scientific side, has already been mentioned in the form of footnotes. a) ~Cultivation.~ Jumelle Henry, Le Cacaoyer, sa culture et son exploitation dans tous les pays de production, Paris 1900.