Note 242 — Book 5. Appendix.

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 2/3 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.