VOL. LXX.J PHILOSOPHICAL TRANSACTIONS. 711 



cordingly was the only part distinguished by a patch of hoar-frost. Besides this 

 kind of hoar-frost which joined itself to bodies by a regular arrangement, there 

 was some of a different sort found on the uppermost surface of such bodies as 

 were fully exposed to the open air. But this always lay scattered like very thin 

 flakes of meal, or hair-powder, and was found to proceed from minute parts, 

 mostly columnar, previously formed in the air, falling down by their own gravity. 



XXXVI. Abstract of a Register of the Barometer, Thermometer, and Rain, 

 at Lyndon, in Rutla?id, 1779- By Thomas Barker, Esq. p. 474. 



XXIX. Journal of the Weather at Senegal, during the Prevalence of a very 

 Fatal Putrid Disorder, with Remarks on that Country. By J. P. Schotte 

 M. D. p. 478. 



Dr. S. having kept a meteorological journal at the island St. Lewis, in the 

 river Senegal, in Africa, during a time when the greatest part of the garrison 

 and a great number of the inhabitants on the island, as well as on the continent 

 died of a putrid disorder, he communicated the same, as he thought this fatal 

 circumstance a sufficient reason to make it acceptable to the k. s.; hoping that it 

 may afford matter to determine the cause of it, and lead to find out remedies to 



