VOL. VI.] PHILOSOPHICAL TRANSACTIONS. 5Q5 



proceeded ex pnvmaturd cessatione mensium (which left her in the fortieth year 

 of her age;) thereby perha})s deceived, because there was never either stone or 

 gravel voided by her. But her last doctor (from whom I have this relation,) 

 adjudged it to proceed ab affect u nephritko et quidem gravmimo. This jxjrson, 

 when dead of these distempers, was opened by this her last physican, and among 

 many other common phaenomena he found the left kidney filled with large 

 stones, but the right wholly })etrified, covered with the ordinary skin without 

 any flesh; the half of which (the other being broken by injurious dissection) 

 representing still the kidney, I have seen, which was both massy and ponderous, 

 so concreted by the closer coalition of minute sand, which might be rubbed off 

 by your finger. 



The other was a lad about nineteen years old, who from his cradle was dis- 

 posed to a consumption, accompanied with continual coughing, great emaciation 

 and continual heat, so that he was reduced to a skeleton, and labouring under 

 this distemper died. Being opened, a great quantity of watery matter run out 

 at the abdomen, of a chylous consistence; almost all the glandules of the me- 

 sentery, through which pass the vence lactece, were very great, and hardened be- 

 yond the hardness of a scirrhus. The breast being opened, the lungs, were 

 found grown to it round about, almost inseparable, full of purulent ulcers, but 

 more especially the left side, obstructed and filled with much gravel and small 

 stones; yea, whole pieces of the lungs, especially the extremities, about the 

 thickness of a finger and more, were hardened into a stony matter. 



An Account of four Boohs. N" 71, p- 2159- 



I. Francisci de leBoe Sylvii Praxis Medicae Idea nova. Lugduni Batav. 1671. 

 This work has been already noticed at p. 289 of this volume of our Abridge- 

 ment. This is an improved edition. 



II. Relatione dello Stato presente dell' Egypto, scritta dal Sig. Gio. Michaele 

 Vanslebio. In Parigi, 1670, in 12mo. 



The author observes that the winter of Egypt is as mild as the March air of 

 Rome; and that the usual time of rain is in the months of December, January, 

 and February, and that principally about the sea-coast : That there are tem- 

 pests from Easter to Whitsuntide, when the wind is for the most part easterly : 

 That the most agreeable weather is in November and December, when the 

 country is dried again from the Nile waters, and every place in verdure, the 

 winds gentle, and the sun tolerable : That the violent heats are in April, May, 

 June, &c. till the inundation of the Nile cools the air; which begins in July and 

 ends in September or October ; and proves the great and general manure of that 



4 F 2 



