VOL XLVI.] PHILOSOPHICAL TRANSACTIONS 635 



A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal So- 

 ciety by the Company of Apothecaries, for the Year \7'l6, &c. &c. N" 4gi, 

 p. 43. 

 [This is the 25th presentation of this kind, completing to the number of 



1250 plants.] 



Concerning a Boy, who had a Calculus formed between the Glans and the Prte- 

 putium. By the Reverend Mr. Robert Clarke. Dated Houghton Conquest, 

 Jan.1\, 1749. N"491, p. 45. 



This boy from his infancy laboured under a difficulty of making water ; for 

 though he was 3 years of age, when put under the care of the person from 

 whom this intelligence was received, yet he could not go alone. He was in the 

 greatest agony on every motion; but was relieved by putting a great pin, the 

 head foremost, an inch, at least, between the prepuce and the stone ; when 

 sometimes a mucous, sometimes a gritty matter, would first ooze out, and then 

 came the urine with some violence. 



During this time, the end of the penis was observed to grow in the form of, 

 and as large as a hen's egg ; occasioned, as may be imagined, by the concretion 

 of the stone between the glans and the prepuce. At last there was a total sup- 

 pression of urine for 48 hours at least, attended with an appearance of a sore in 

 the side of the penis, out of which the stony concretion sent by Mr. C. drop- 

 ped; and from that time, all the while the boy continued under the same per- 

 son's care, which was about i a year, the urine was discharged at the side, with 

 less and less pain. Last summer he came to see his quondam nurse, and told 

 her that he was then perfectly well. His age then was about 23, His name 

 John Blackhouse. 



The Establishment of a Netv Genus of Plants, called Salvadora,* with its De- 

 scription. By Laurence Garcin, M.D., F.R.S. of Neufchatel in Switzerland. 

 N° 491, p. 47. Translated from the French, by T. Stack, M.D. 



This plant is woody. It grows sometimes into a tree, sometimes into a shrub, 

 and sometimes into a bush ; spreading very tufted branches on all sides down to 

 the ground. Its native countries are the parts adjacent to the Persic gulph, the 

 north of Arabia, and the south of Persia. It does not appear that any author 

 has known, or made the least mention of it. 



Its characters are as follows : Calix, this is a monophyllous cup, divided into 

 4 lobes, which, as soon as they spread open, turn outward, and roll backward 

 on themselves ; then wither, grow whitish, and dry up. — Corolla, its flower is 



• Salvadora persica, Lin. It belongs to the Tetrandria Monogynia. 



4m 2 



