PHILOSOPHICAL 
T R A N S A C T I O N S. 
The CO N T E iN 
I A Letter from the ^ver end and Learned Dr. John Wallis, 
Savilian Profeffor of Geom. in the Univerfity of Ox- 
ford, to Dr. Robert Plot, one of the Secretaries of the 
Royal Society , concerning an ancient Mantle-tree in 
Northampton-fhire, on which the date of it [for the 
year of our Lord iin )is expreji by the Numeral Figures 
rohich Jhevoeth the great Antiquity of thefe Figures 
here in England. 2 a Letter from the Learned Mr. 
J. Flamfteed, Aftron. Reg. concerning the Eclipfes of 
SaturasSztellit's for the year folioivi?ig 168 \i with a Ca- 
talogue of them, and in£ormd.tions coficerning its ufe, 
3. Joh. Hevelij Hiftoriola Comttx Anno i 68 3- An aC" 
coufit of two Books. I:i}Q\Jnms d>cV\x\fib\xS', de Miffione 
Sanguinis; deFebribus; de Morbis Capitis & Pectoris: 
Opus LAURENTII BELLINI Bononix m 
.4'\ 16^2. IL Memoirs for the Natural Hiflory 0/ Hu- 
man Blood, tjpectally the Spirit of that Liquor,- by the 
Honourable ROBERT BOYLE Efqutre, Fel- 
low of the Royal Society. London. In 1^84. 
A Letter from Dr. John WalUs, to one of the Secretaries of 
the Royal Society (Dr. Robert V\ol,tbe publiper of thefe 
Tranfadions) concerning an Antient^\.^VLl\z-U^^ uiHot- 
thampton-fhire,* on winch the date of it (for the year of 
ourLord ii-^i) is exprejfed by the Numeral Figures, which 
JheUs the great Antiquity ofthofe Figures here ///England. 
SIR, 
Give you, herewith, the Draught of an Ancient 
Mantle-tree; which was lately fhewcd me, at Helmdon 
inNorthampton-fhire \ at the now dwelling houfe ot 
Mr. William l^chards the prefent Redor or Minifter 
G g g there 
