It has lately been discovered that vegetable _gluten_, as existing in wheat flour, is capable of producing upon corrosive sublimate the same chemical decomposition, as that which we have stated to arise from the action of albumen; whence the administration of wheat flour and water has been suggested as a ready antidote. On the trial of _Michael Whiting_, for administering poison (_corrosive sublimate_) to his brothers-in-law, _George_ and _Joseph Langman_, the housekeeper, _Catharine Carter_, stated in evidence, that the flour, (which was subsequently proved to contain corrosive sublimate) could scarcely be made into dumplings with milk[281]; and another witness, _Mrs. Hopkins_, a neighbour who took charge of the dumpling that had not been boiled, described it as “_a comical sort of paste; like glazier’s putty more than paste, though not greasy_.” In order to ascertain the correctness of this statement, we mixed powdered sublimate with wheat flour, and proceeded to make it into dough with milk; when the same difficulty as that stated by the above witnesses, embarrassed the process, and satisfied us of the truth of their testimony. The phenomenon would appear to depend upon the mutual chemical changes which arise in the gluten and mercurial salt. _Organic Lesions discovered on Dissection._ The œsophagus and stomach will be found inflamed, and sometimes eroded, as in poisoning by arsenic. _Salin_ has asserted, that this salt never produces perforation of the intestinal tube; this, however, is not the fact; and we know not of any exclusive appearances, by which the organic lesions inflicted by this poison can be distinguished, unless indeed it be the black appearance of the stomach, as if it had been burnt, which occasionally presents itself. _Of the Chemical Processes by which the presence of Corrosive Sublimate may be detected._ As the chemist, devoted to forensic enquiry, will be required to identify this substance under very different states of mixture and combination, we shall proceed to enumerate the various obstacles that may possibly oppose his researches; and, at the same time, to suggest the expedients by which they may be successfully evaded. Unlike arsenious acid, corrosive sublimate is so readily decomposed by various alimentary substances, that, when we attempt to demonstrate its presence in such mixtures, we shall be more frequently compelled to rest our proof upon the products of the analysis, than upon the actual reproduction of the salt. We shall proceed to consider the best modes of establishing the presence of this salt, in the different forms in which it may occur, viz. 1, _In the solid form_; 2, _Dissolved in water or spirit_; 3, _In various coloured liquids_; 4, _In a state of mixture with various solids_; 5, _Combined with solid or liquid aliments, by which it undergoes decomposition_; 6, _In a state of combination with the textures of the alimentary canal_.