'242 VHILOSOPHICAL TRANSACTIONS. [aNNO 1751. 



in their symptoms ; for they were seldom attended with any head-ach, the tongue 

 not much charged, and the urine seldom made any sediment of the lateritious 

 kind; and if they were not taken in time, a yellow jaundice came upon them 

 the 6£h or 7th day: and in the beginning of the fever, the patient seldom vomited 

 bile as usual, but rather a pituitous matter." 



Dr. Mackenzie to Dr. Mead. Dated Constantinople, Nov. 13, 1751. 

 " I remember to have written to you my sentiments of this distemper some 

 years ago; and from all the observation I could make in the interval, I have no 

 reason to change my opinion, viz. that it is brought from Cairo commonly ; and 

 that when once a house or ship is infected, it is very difficult to eradicate the 

 animalcula, semina, effluvia, miasmata, or whatever name is proper for the 

 reliques or remains of it, which getting once into a nidus, lodge there: Condensed 

 by the cold during the winter, and when rarefied by a certain degree of heat, 

 they act on bodies which have a disposition, as women and children mostly, and 

 so spread by contact only, without communicating any malignancy to the am- 

 bient air. Otherwise very few could escape: whereas we found this last time, 

 and on all such occasions, that whoever kept their doors shut, ran no risk, even 

 if the plague were in the next house ; and the contact was easily traced in all the 

 accidents which happened among the Franks. The patients were this year sick 

 at stomach, and troubled with vomiting and nausea for 3 or 4 days after they 

 were infected, and before the eruption of the buboes, carbuncles, or tokens; 

 and in about 4 days more after the eruptions they died, or showed good symp- 

 toms of recovery, such as, the fever, with all its symptoms, decreasing; the 

 eruptions tending to maturation and suppuration, the nausea ceasing, and some 

 appetite beginning." 



LXIV. A Catalogue of the Fifty Plants from Chelsea Garden, presented to 

 the Royal Society by the worshipful Company of Apothecaries for the Year 

 175], pursuant to the Direction of Sir Hans Sloane, Bart. By J. Wilmer, 

 M. D. p. 396. 

 This is the 30th presentation of this kind: completing to the number of 



1 500 different plants. 



LXV. Of Dr. Bianchims Recueil d^ Experiences faites a Fenise sur la Medecine 

 Electrique. By Mr. William Watson, F. R. S. p. 399. 



The account of this work indeed may be now thought less necessary, as, 

 since the Abbe Nollet's journey to Italy, and our want of success here in our 

 attempts to do the like, every body has considered what the Italians printed on 

 the transmission of odours through the pores of glass, and on the subject of 



