182 PHILOSOPHICAL TRANSACTIONS. [aNNO 1705. 



particularly * Fulvius Angelinas, who wrote an entire discourse De Verme admi- 

 rando per Nares egresso, very rationally conclude, that the worms they treated 

 of came from the stomach, or lungs, not being attended with those symptoms, 

 nor affecting the head, as in the cases related by the authors we have mentioned, 

 particularly in that remarkable instance of -jf Hollerius of a worm evacuated at 

 the nose nulld tussi, nullo vomitu antecedente, which by the acute pain it pro- 

 duced, plainly discovered where it lay concealed. 



Whether worms may generate in the brain or its teguments, I shall not deter- 

 mine ; it is sufficient, supposing it possible, that there is no passage for them 

 thence to the nose ; where they are often found, as we are assured by many 

 credible writers. Angelinus and Alsarius a Cruce place them prope nasi cola- 

 toria in strictura narium ; both seeming to imply that sinus more exactly de- 

 scribed by J Avicenna ; which is to be understood of human heads, not those 

 of brutes, but only as applied by Joubertus. 



Account of very large Stones voided per Urethram. In a Letter from Mr. Edw. 

 Lhwyd, Keeper of the Ashmolean Museum, Oxford, to Dr, Hans Sloane, 

 S.R.S. Dated Oxford, Sept, 22, 1704. N° 295, p. 1804. 



Thomas Olton, upwards of 78 years of age, being afflicted with stone in 

 the bladder, applied to Dr. Bullen and other physicians in the neighbourhood 

 for assistance, and took various medicines according to their direction, but 

 without relief. At length, in one of the paroxysms, which was more violent 

 than any preceding attack, he voided per urethram two stones, each of which 

 weighed above 2 dr. The expulsion of the first stone was attended with excru- 

 ciating pain, but the second occasioned very little uneasiness, in consequence 

 of the dilatation and disruption of the passage by the first calculus. It is pro- 

 bable that these two calculi were once united into one mass in the bladder, as 

 they fitted each other exactly at the broken places. 



On Firing Gunpowder on a red-hot Iron in Vacuo Boyliano, By Mr. Fr, 



Hauksbee. N° 295, p. 1 8O6. 



The red-hot iron being included in a recipient proper for that purpose, and 

 the air withdrawn, which was in about 2 minutes of time, the mercury then 

 in the gauge standing at 294^ inches, a quantity of gunpowder was dropped 

 upon the red-hot iron, which continued upon the surface of it some small 

 time before it inflamed, and then was observed not to fire all at once ; and 



* Apud Alsar. Crucium de Quaesit. per Epist. cent. 3. f De Morb. iatem. lib. 1, cap. 54, in 8cho). 

 X Loc. supra citatv— Orig. 



