VOL. LVIII.] PHILOSOPHICAL fRANSACTIONS. 520 



When a child is to be inoculated, the skin between some of the fingers is pricked 

 by means of two small needles joined to one another. After having rubbed 

 in a little of the matter upon the spot, a circle is made by means of several 

 punctures, of the bigness of a common pustule, and matter is again rubbed 

 over it. The wound is then dressed with lint; a fever ensues, and after some 

 days, the eruption, which if the fever has been strong is observed not to be very 

 copious. To excite the fever, the patient is made to bathe in a tub of water. 

 As this way of managing the operation is very painful, a more easy one has been 

 invented for people of quality and substance. A little of the matter is mixed 

 with sugar, and swallowed by the child in any sweet and pleasant liquid. The 

 same effect is produced, but the first method is thought to be the best." 



XVIII. Crolon Spicatuvi, nova Plantte Species ex jdmerica, quam Descriptione 

 et Icone illustravit Petrus Jonas Bergius, M. D., Acad. Scient. Slock. 

 Membr. &c. p. 132. 



The plant described in this paper by Dr. Bergius is the Croton Lucidum. 

 Lin. Mantiss. Plantar. Croton foliis ovatis glabris, floribus spicatis, stylis 

 multifidis depresso-pubescentibus, caule frutescente. It is a native of America, 

 and rises with a shrubby branching stem, smooth leaves, and spiked flowers. 



XIX. Observations on the Barometer and Thermometer, and Account of the 

 whole Rain in every Month of the Year 1767, taken at the Royal Hospital 

 near Plymouth. By William Farr, M.D. p. 136. 



There is nothing of any use now in this register of the weather. 



XX. On the Inoculation in Arabia, in a Letter from P. Russell, M. D., at-^ 

 Aleppo, to Alex. Russell, M. D., F. R. S., preceded by a Letter from 

 Dr. Al. Russell, p. 140. 



The following account of inoculation in the east, Dr. Alex. Russell states to 

 have been received from his brother (Dr. Patrick Russell) at Aleppo, and though 

 nothing further seemed wanting in this country to remove prejudices against 

 that practice, yet he thought its being made public might be of some use to 

 other European nations, where such prejudices still prevail; and, as a matter 

 of curiosity, would not be unacceptable to the r. s. 



'■ Just before his leaving Aleppo, he heard that it was practised among some 

 of the Bedouins there, and went by the name of buying the small pox; but 

 being then much engaged with other business, it quite escaped his memory, 

 and indeed his information was so slight, that he did not think it right to 

 mention it in his Natural History of Aleppo. 



In his letter to his brother. Dr. Patrick Russell states, that from the manner 

 in which inoculation is mentioned in the Natural History of Aleppo, he suspected 



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