188 PHILOSOPHICAL TRANSACTIONS. [aNNO ITIJ . 



millstone. By the lightness of it, considering its bulk, it seemed to be porous 

 within. How long this stone was generating, or what produced it, is altogether 

 uncertain. The weight of the stone at length made a fracture in the paunch, 

 which proved his death : for before the breach, and while the stone rolled in 

 his stomach, he was very well. 



The largest stone found in any animal th;it the Phil. Trans, give an account 

 of, weighed only 4 lb. 4 oz. 



Of n Polypus coughed up from the IVindlnjje. By Dr. Samber, of Salisbury. 

 N" 398, p. 2(5'2. 



One Tompson was taken with so violent a flux of blood, that in a short time 

 he lost near 3 lb. of blood. After it he seemed to have something, when he 

 coughed, that stuck in the passage, which he could not get up, and by its 

 rattling seemed very loose. Half an hour after he coughed up something, which 

 on being put into water, was found to be a very remarkable polypus. Dr. S. 

 could find by the blow-pipe, that it was hollow; but its being torn off with such 

 violence, made so many holes in it, that it could not be blown up. It is pro- 

 bable that it lined the bronchia, and that the air had a passage through it, and 

 that a violent fit of coughing had separated the adhesion, and brought on that 

 violent flux of blood, &c. The patient had been tormented with a cough for 

 more than 6 months, and was a gouty man ; but after this was coughed up, and 

 so large an ulcer made, he had all the successive symptoms of a fatal consump- 

 tion ; as cough, spitting, hectic, colliquative sweats, diarrhoea, and about a 

 month after he died, aged near 50. 



j4n Account of a Book entitled Vegetable Statics: or an Account of some Statical 

 JLxperiments on the Sap in Vegetables; being an Essay totvards a Natural 

 History of Vegetation. Also, a Specimen of cm Attempt to Analyse the Air, 

 by a great Variety of Chymico-Statical Experiments ; ivhich were read at 

 several Meetings before the Royal Society, &c. By Stephen Hales,* B. D. 

 F. R. S. By the Rev. John Theoph. Desaguliers, LL. D. F. R. S. N° 398, 

 p. 264. 



As the ancients used to say, that geometry and arithmetic are the wings of 

 a mathematician; so a mechanical hand, and a mathematical head are the 



* Dr. Stephen Hales was one of the brightest ornaments of the R. S. during the 18tl) century. 

 He was born in l677, and studied at Cambridge. Although divinity was his chief object, yet he 

 showed a marked fondness for natural history and experimental philosophy; and while at the 

 university, we are told that he contrived a machine for representing the motions of the heavenly 



