The small tablets had an average weight of 34·3 grains. Analysis showed them to contain sodium bicarbonate and tartaric acid, but in this case the latter was in excess and the product acid; the other ingredients were sodium chloride, phenolphthalein, and talc. The results of quantitative determinations indicated the following formula (more carbon dioxide had been lost in this case; the figures add up to 108·5, the reason being that given above): In One Tablet. Sodium bicarbonate 34·8 per cent. 11·9 grains. Tartaric acid 46·3 ” 15·9 ” Sodium chloride 22·8 ” 7·6 ” Phenolphthalein 1·6 ” 0·5 grain. Talc 3·0 ” The estimated cost of the ingredients of the contents of a 2s. 9d. bottle is 1¾d. FELL REDUCING TREATMENT. In pushing this “treatment,” advertised by an Association giving an address in London, the system of letters in series is resorted to, but a small package, containing 112 tablets, can be purchased for 6s. 6d. An advertisement ran as follows: FAT PEOPLE GIVEN FREE TREATMENT. We have such marvellous records of reductions effected in hundreds of cases with the Fell Reducing Treatment, that we have decided, for a limited period only, to give free trial treatments. 7 LB. PER WEEK REDUCTION IS GUARANTEED, without dieting. Perfectly harmless, pleasant; easy and quick results. Send no money. Simply address the Fell Formula Association, 340, Century House, 205, Regent Street, London, W., enclosing stamp to pay postage, when a free supply in plain wrapper will be immediately forwarded. A free supply was sent on application, accompanied by a letter and sundry circulars; other letters followed at intervals, and extracts from some of these will be given. They were printed in imitation of typewriting, with the name and address typed in, so as to give the appearance of being personal letters. It will be noted that when a customer has been attracted by the advertisement that “7 lb. per week reduction is guaranteed, without dieting,” very much smaller claims are gradually substituted. Esteemed Friend, Your favour of recent date has received our careful attention, and we take pleasure in sending you a three days’ trial of the Fell Reducing Treatment. Before taking it, weigh yourself, and then again in three days, on the same scales and in the same clothes, you will find you have lost some 3 lb. in weight.