628 I'HILOSOPHICAL TRANSACTIONS. [aNNO 1/80. 



deal, 12 inches broad, edgeways, all fore and aft at the middle line, and well 

 caulked it, to stop half the water on the weather or upper side, when the ship 

 would incline either way, which not only made her stifFer under sail, but facili- 

 tated the pumping out the water made by leaks in the deck. 



This deck was 63 feet long and 23 feet broad, and was laid at 5 feet 5 inches 

 above the bottom of the keel, or 4 feet above the top of the floor timbers, and 

 swam the ship at 12 feet 5 inches water, resisting 2l6 tons, and containing 

 under it 124 tons of water, which pressing against the under side of the tem- 

 porary deck, acted as ballast, and brought her safely into the dry dock at Dept- 

 ford, from the most dangerous situation possible, being partly within and partly 

 without Margate Pier, where slie had been left by some Ramsgate men, who 

 had undertaken to remove her from the place where she was stranded to a safer 

 one within Margate Harbour. 



VII J. Account of a Woman who had the Small-pox (luring Pregnancy, and who 

 seemed to have communicated the same Disease to the Fcetus. By John 

 Hunter, Esq., F. R. S. p. 128. 



Mr. Grant's Account. — On the 5th of Dec. 1776, Mrs. Ford had been seized 

 with shivering and the other common symptoms of fever, to which were added 

 great difficulty of breathing and a very hard cough. Mr. Grant saw her on the 

 7th ; and he took from her 8 oz. of blood, and gave her a composition of the 

 saline mixture with spermaceti and magnesia every 6 hours. 



This had operated by the 8th 2 or 3 times very gently, vviien most of the 

 complaints were relieved ; but the cough still shaking her violently, bleeding 

 seemed necessary to be repeated, more particularly as she considered herself to 

 be in the 6th month of her pregnancy. The medicine was continued without 

 the magnesia. 



In the evening, viz. the 8th, the small-pox appeared, which proved of a mild 

 kind, and moderate in quantity. Its progress was rather slower than might have 

 been expected ; but the woman passed through the disease in great spirits, sitting 

 up the greatest part of the day during the whole time, and taking only a pare- 

 goric at night, and, as occasion required, a little magnesia : thus the symptoms 

 were mitigated, and the cough at last became very little troublesome. On the 

 25th she complained of a pain in her side : 8 oz. of blood were taken away. 

 The next day she was quite free from pain, and thought herself as well on the 

 27th as her particular situation would admit of ; after which she was not visited 

 by Mr. Grant till the 3 1st, when she was in labour. 



Mr. JVaslaWs letter on the same subject. — Dec. 30, 17/6, I was sent for to 

 Mrs. Ford, a healthy woman, about 22 years of age, who was pregnant with 

 her first child. She had come out of the country about 3 months before. Soon 



