VOL. XXV.] PHILOSOPHICAL TRANSACTIONS.' 375 



have a little of the stuff which was taken from the tongue of the patient, which 

 accordingly was brought to me two days after one another. This matter, which 

 lay upon a paper, stuck so fast together, that it was very diiBcult to separate it, 

 and the most part of it apf>eared as clear as any water to our naked eye; having 

 viewed it through a microscope, I saw that the clear sticking moisture was en- 

 compassed with an exceedingly great number of very small globules, which ap- 

 peared to be much smaller than those that make our blood red ; and when this 

 white matter was thoroughly dry, it appeared to be of a green colour, much 

 like that matter which we discharge by the mouth when we take cold, and 

 which is commonly called green phlegm. The doctor told me, that a day or 

 two before, there peeled off" whole skins from the tongue of his patient, and 

 that his tongue was so very much swelled, that it filled the whole mouth. I 

 remarked to the doctor, how much those persons were mistaken that affirm 

 that these skins on the tongues proceed from the vapours or fumes of the sto- 

 mach, in which the doctor agreed with me; but when I told him that the great 

 thickness of the tongue was occasioned by the want of the blood circulating 

 therein, while the heart was continually sending up fresh blood into the tongue, 

 by which means it was forced through the tunics of the vessels, and turned to 

 that matter which was found upon the tongue, and which we call the thrush ; 

 and whereas that matter which I found in my illness upon my tongue was 

 nothing but the serum of the blood, the reason of it was, that the protrusion 

 of the blood was not so strong in me as it was in the young man, neither were 

 there any globules to be observed in it; on which the doctor agreed with me 

 entirely in this opinion: to wit, that the matter, which was found upon the 

 tongue, does not proceed from fumes and vapours out of the stomach, but is 

 protruded out of the tongue; and added moreover, that when he scraped such 

 like matter from the tongues of his patients, in half an hour's time they were 

 covered again with the matter which we call the thrush; and further, that when 

 the patient, being somewhat better, had scraped off the matter from the tip 

 of the tongue somewhat too harshly, he caused his tongue to bleed ; but soon 

 after it had done bleeding, it was again covered with the thrush. 



Concerning a Mineral Water at Canterbury. By Dr. Scipio des Moulins. 



N° 312, p. 2462. 



About 12 years since a mineral water was accidentally discovered in this city, 

 In digging the ground, they first met with a fat black mold, extending itself 3 

 feet deep, and«gradually changing into another sort of earth, very fat and like 

 butter. This second layer was 2 feet thick; the colour yellow, something mixed; 

 is odour strong and mineral; and a piece of it being for some time exposed to 



