“When Secretogen was first introduced we assumed that it depended on secretin for results produced. In this assumption we were in good company, as witnessed by the testimony of Moore, Edie and Abram when, in the course of their investigations as to the value in diabetes of _a secretin-bearing extract given by mouth_,[106] they said: ‘In the majority of these cases ... there has been no appreciable fall in the output of sugar ... in some of these negative cases there has been noted, however, improvement in the digestion and, in certain cases, the patient’s weight has increased.’ They also state that the secretin-bearing product ‘_appears to stimulate the functional activity_ of the duodenum.’[106] They give a most significant report.[107] We quote from the paper as follows: [106] All italics are ours. G. W. Carnrick Company. [107] Bio-Chem. Jour. =1=:28, 1906. “‘The patient had been under observation for six months before treatment and the sugar was not reducible by diet. _Almost at once the dyspepsia from which he was suffering was relieved and his general nutrition improved to such an extent that he regained over eighteen pounds in weight, which he had previously lost, and this improvement was accompanied by complete recovery_ of his physical and mental energies.’[106] “Inasmuch as this improvement could not have been due to the contained secretin it must have been due to some other principle contained in the extract. Our experience and that of the physicians who have used Secretogen establish the fact that Moore, Edie and Abram made no mistake when they came to the conclusion that what they termed a secretin-bearing extract stimulates the functional activity of the duodenum and improves the digestion. “When Professor Carlson was investigating Secretogen he must have realized that he was dealing essentially with an extract of the duodenal mucosa. It is, therefore, all the more surprising, considering his extensive researches into the literature, that he should have ignored the testimony of some of his own authorities, particularly Hallion, as to the value of extracts of the duodenal mucosa in duodenal insufficiencies. The meticulous carefulness with which this evidence was avoided is hardly worthy of the best traditions of physiology, a science which has truth for its first and last aim. “Hallion in his ‘La Pratique de l’Opothérapie’ says that the ‘aims of duodenal opotherapy are: 1, To supply deficient duodenal juice. 2, Above all to stimulate and to relieve this organ--_notably to aid the production of secretin_[4]--and so profit by the stimulating action which duodenal extract exercises on the duodenal mucosa which action we, Enriquez and myself, believe and have experimentally proved, conforms to the general principles of opotherapy. 3, By means of the production of secretin, to reinforce the biliary, pancreatic and intestinal secretions. 4, To stimulate intestinal peristalsis.