( i S7 ) 
fNumb. 304.) 
EHILOSOPHICAL 
TRANSACTIONS. 
For the Months of November and December, 1705. 
Tke. C O. N T E N T s: 
J/ Several Microfcopical Oh/erVatiQns on- the Tumice^ 
' Stone ^ Cord, Spunges^ &c. In a Letter front Mr 
Anthony Van Lcuwenhoek, F. ^. S, 
IL ^4rt of a Letter from Mr Ralph Thoresby, 
F. S. concerning a large ^all Voided by Stool 
III. Several Experiments on the Attrition of Bodies in 
Vacuo- Made before the Royal Society at Gre- 
ftam College, by Mr Fr. Hauksbee, K % S. 
IV. f^r^ of a Letter from t)r Samuel Brady, to 
T>r William Cockburn, F. 5^. S. giving an Ac- 
count of a Tuppy in the Womb th.it receivd no 
]Stourip?ment by the Mouth. 
Y» A^l^tionof an extraordinary Jleepy f erf on^ at 
Tinsbury, nearBuh. Sj)^ I)r William Oliver, 
F S. 
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