CNumb. 297 
PHILOSOPHICA L 
TR AN S A CT I ON S. 
For the Mofttfj of Match, 170$. 
The CONTENTS. 
I. OhfervntiOfis on the Sccd VeJfds and Seeds of Polypodium. 
In a Letter from Mr /inchony Van Leeuwenhoek, F.R.S. 
il. Part a Letter from Mr Ralph Thoresby, F. R. 5. con* 
cerniHg Pewter Money ^ Cojnd in Ivdandj, ij tkc late Kin^ 
James. 
III. A Profpeif oftke Wc^thQT, Winds, ^;?^ Height of the 
.Mercury in tfoe Barometer, on the firjl day of the Month 5 
and of the whole Rain of everjf Month in the Tear ijo^^ 
andthe beginning of 1 704. Obfer^ifd at Towneley in Lan- 
cafliire, bj R.i. Towneley, Bfq-^^ and at Upminfter in 
Ellex. By the Reverend Mr W. Derham, F- R. S, 
IV. Afironomi£ Comet ic£ Synopfis, Autore Edmundo Halleio 
apud Oxonien fes Geometri^e Profejfore Saviliano, 8c Reg* 
Soc: S. 
V. Part of a Letter from the Reverend Dr Rich. Wroe, War^ 
den <?/Maachefter College^ to Dr Hans Sloane, R. S. con* 
cerning Horn lil^e Excrefcences gromttg on the Fingers^ Sec. 
VI. An Extras of a Letter from Mr Ralph Thoresby, F.RS^ 
to Dr Hans Sloane, S. R. S. eoncerning fome Svredifh 
Coins 5 and a Calculation for the finding f?/Eafter. 
VII. An Account of an Experiment made at a Meeting of th$ 
Royal Society at GvQ^dimQoWQgQ^ upon the propagation of 
Sound in Condenfed Air^ together with a Repetition of tks 
fame in the open Field. Bf Mr F. Hauksbee. 
VIII. An Experiment made at a Meeting of the Royal Society^ 
touching the Diminution of Sound in Ait rarifyd. By Mr 
Fr. Hauksbee. 
I i i i i i i i i i i L Ob- 
