686 PHILOSOPHICAL TRANSACTIONS. [aNNO ] 749. 



440) on the manner of impregnation of the seeds in mayze, Mr. C. adds, that 

 if the seed and whole species of mayze be planted about 2 yards distance from 

 each other, there will be a mixture of red and white grains in the ears of each 

 plant, and you may with pleasure observe the filament in the white plant, which 

 has been struck, with the red farina, discovering its alien commerce by a con- 

 scious blush, and by counting the threads they stained, foretell how many cor- 

 responding seeds will appear red, at the opening of the ear, when ripe. 



A man of about 22 years married a healthy young woman, much of the samd 

 age. Soon after he went to America, and at the end of 7 years returned cachec- 

 tic, anasarcous, and deeply tinged with the jaundice, endemical in hot latitudes. 

 In a few months after his return his wife became pregnant with her first child, of 

 which she was delivered in due time. The child was born with a jaundice on it, 

 and died about 6 months after, under ascitical and icterical symptoms, of which 

 the mother had not the least impression. Soon after this, (and before the hus- 

 band, though much better, was quite cured) she became again pregnant, and 

 after about 3 months turned yellow, and was the whole time of her going with 

 child, and some months after her delivery, deeply affected with the jaundice. 

 But the child was bom quite fair, white, and healthy, without any thing of that 

 distemper on it ; and is still living, and the last born. 



Concerning a very Cold Day, and another a very Hot Day, in June and 

 July 1749; and oj" the Near Agreement of Thermometers in London and at 

 Tooting. By the Rev. Henry Miles, D.D., F.R.S. N° 493, p. 208. 

 June the 10th, suspecting a frost that night, Dr. M. set a China saucer full 

 of water on the grass plot in the garden ; and the next morning, a little before 

 sun-rising, the water was frozen over, of such a consistence, that he forced a 

 hole through the centre of it with his finger, without breaking it elsewhere, and 

 carried the cake of ice into the house, where it remained a good while not dis- 

 solved. Wind was n.w. On some following days there were several considerable 

 frosts, the wind continuing the same way ; the fatal effects of which are suffi- 

 ciently known throughout the kingdom. 



July 2, at 12'' 20*", his thermometer of Farenheit's scale, in the shaded air, 

 stood at 88, and at 2*^ p. m. at 87. At which last number, 2 others of the same 

 sort stood exactly, at that hour, in London. 



Having agreed with Mr. John Canton of Spital-square, to make observations 

 of the temperature of the air here, at Tooting, and in London, at a stated hour. 

 They procured thermometers, made exactly alike, by that accurate workman 

 Mr. Bird ; and having found, by hanging them first together a sufficient time, 

 that they perfectly agreed, they began their observations in April, and continued 

 them ever since. 



