I i8 9 3 
Since my writing this, I have been turning over a 
little Treatife of the ever memorable Mr. Boyle 
upon the Hygrofcope, wherein I find he had made 
fe'veral Trials with different Sorts of Wood ; but 
then they were turned into the Shape of Bells; 
which, he fays, anfwered very well, by comparing 
theirWeights : That their different Weight increafed 
ord iminilhed, according to the different Degrees of 
the Air’s Moifture ; and that he had taken notice 
of the Expanfion of the Wood in Doors and Door- 
Cafes : But he proceeds no farther than to recom- 
mend the different Kinds of Wood to be examined 
by their Weight. 
London, May 8. 1746. 
III. A Letter from R. Badcock, Ffq\ to Mr. 
Henry Baker, F. R. S. concerning the Fa- 
rina fcecundans of the Yew-Tree. 
SIR, 
Read May 15. A S I take upon myfelf a fort of Share 
174 JTjL * n l ^ e Study and Difcoveries of the 
Philofophic World, I efteem it a Debt incumbent on 
me to advance that Part of it I have engaged myfelf 
in, by communicating whatever I find worthy of it. 
The following Difcovety is, I believe, worthy your 
Notice; as, in the Courfe of my Experiments, I never 
yet met with any thing equal to it. 
On the 3d of March, ftrolling round my Garden 
in Search of Objetts, I obferved a Yew-Tree infBlof- 
7 fom. 
