296 CHAPTER 22, 
members of the Royal Society, after its In- 
corporation ; and contributed feveral papers, 
which were printed in the Fhihfophtcal 
TranfaEiions'' 
He made experiments on vegetation, in 
<he year 16643 by which he found, that 
fquare fedtions of the bark, from afh, and 
maple, whether feparated on three fides 
only, or wholly, would firmly unite, if 
tightly fecured by plaifter and packthread. 
Experiments on the lofs of weight, 
' which a plant of the Ahe Americana^ with 
eleven leaves, fuffered by hanging up in 
the kitchen for five years. In the firft 
^ year it loft near two ounces and an half ^ 
the fecond upwards of three ounces ; de- 
creafing afterwards nearly in the fame pro- 
portion. It loft two of the larger leaves 
every year, and put forth two new ones 
every fpring; from which circumftance, the 
Dodor inferred a circulation of the juice. 
Experiments on cherry-trees, that, hav- 
ing withered fruit, occafioned by the fun 
being admitted too faddenly upon them in 
March, recovered, by daily watering the 
roots. 
Obfervations 
