( 477 ) 
("Numb. $}5-) 
PHILOSOPHICAL 
TRANSACTIONS. 
For the Months of July, Auguft, and September, 1712. 
The C OTSf TENTS. 
I. Obfervations concerning the Subterraneous Trees in Dagenham, 
and other Marfhes bordering upon the River of Thames, in tlfe 
County of EfTex. By the Revd. Mr Wm. Derham, RsElor of 
Upminfter in the fame County , and F. R. S. 
If. Experiments and Obfervations of the Bffetts of fever al forts of 
Poifcns upon Animals, &c. Made at Montpellier in the Tears 
1578 and 1679. by the late William Gourten Efq\ Communi- 
cated by Dr. Hans Sloane, R. S. Seer. Tranflated from the 
Latin MS. 
III. A Letter from the late Mr. Edward Lhwyd, Keeper of the 
Afhmolean Mufe'um in Oxford, to Dr. Tancred Robinfon* 
F. R. S. Giving a farther Account of xvhat he met with remark- 
able in Natural Hiilory and Antiquities, in his Travels thro ’ 
Wales. 
IV. Several Obfervations relating to the Antiquities and Natural 
Hiftory of Ireland, made by Mr. Edw. Lhwyd, in his Travels 
thro * that Kingdom. In a Letter to Dr. Tancred Robinfon, Fel- 
low of the College of Phyfcians and Royal Society. 
V. An Account of Experiments concerning the Proportion of the 
Power of the Loadfonc at different Di fiances. By Mr. Francis 
Hauksbee, F.R.S, 
VI. The Specifck.Gravities of feveral Metallick Cubes , in comparifon 
with their like Bulks of Water , By Mr Fr. Hauksbee, F.R.S. 
VJI. An Account of vohat appeared on the Diffeflion of the Body of 
Mr. Dove. By the late Mr. William Cowper Surgeon , F.R. S. 
In a Letter communicated by Dr. Hans Sloane, R. S. Seer. 
VIII. A Letter from Mr. Ralph Thoresby, F. R. S. to Dr. Hans 
Sloane, R.S. Seer, Giving an Account of the Damage done by a 
Storm of Hail , which happen’d near Rotherham in Yorklhire, 
on June 7. 17 1 1. 
I. Obfervations 
