extracts: ... We have the following formula: Tincture of capsicum was estimated by comparison. The results indicated the following are extracts from an aqueous liquid containing about 6 per cent. 1·4 grain. Phenolphthalein 4 ” Water To 1 fluid ounce. The orange colour was found to be: Sodium bicarbonate 62·0 per cent. of an aromatic substance probably derived from seaweed. The following