[ 40 ° ] 
“ free from Pain, and had a very different Feeling 
“ from what it had before. From that time, in lefs 
“ than a Month, the Callus was intirely confirmed, 
“ and the Patient recovered the Ufe of her Arm? 
,c which, confidering the oblique Direction of the 
“ Fracture, and the long-continued Softnefs of the 
“ Callus, has its natural Beauty and Straitnefs' 
<c wonderfully preferved. 
“ I know that a Woman’s Pregnancy is mentioned 
<{ in general, by feveral Authors, as an Hindrance of 
“ the Callus being fo loon confirmed as in other 
“ Circumftances. But, except the two Cafes men- 
** tioned by Turner , and taken from Hildamis , I 
do not remember to have read any Hiftory, where 
“■ the ufual Oeconomy of Nature, in reftoring a 
“ fractured Bone, was fo intirely, and for fo long a 
“ Time, interrupted ; and where the Caufe of fuch 
te an Interruption appears fo plain, as in the Cafe I 
“ have been here relating,” &c. 
■ ■ *|| ; • _ j 
XXII. A further Account of the Libellae or 
May -flies, from Mr. John Bartram of 
Penfylvania, communicated by Mr. Peter 
Collinfon, F. R. S. 
Read April 5. ^ o M E time ago I laid * before the 
I75 °’ Royal Society my Obfervations on 
the wonderful Appearance of the LibelU or May- 
flies of England. This Account being perufed by my 
ingenious 
* See this Tranf. p 323. 
