("473) Numk. i 6 
PHILOSOPHICAL 
TRA NS ACTIONS. 
Munday^ "jum 3. 1667. 
The Content^, 
Experiments for Improving tJj^ Art of Cumery^ To /nd out the ^ 
Point-blank difiance 5 the Quantity of Powder , for the jujl * 
charge of my Peece 5 and what Gun Ihoots fartheft. An An* 
fwer tofome Magnetical Inquiries ^ formerly publif)edin thefi ' 
Tranfad:ions. Ex traff of a Letter from V2ixh, containing an Ac-^ 
count of fomcEffeSs PjfBloud Tx2im{M{tA^andoftvpo Monftrous 
BirthSjC^^*.-^ Relation of two other Monfters^^^?^ long fmce pro^ 
ducedin Devonfhire. obfervations made in MintSyand at 
Seaj occafwning a Conjecture about the Origine of^md.An Ac^ 
count of a great number of Stones^ found in one Bladder. The 
Def riptionof a Well Ground, 7« Lancafhire, jf^^/V?^ Fire 
by a Candle applyed to it. An Account ^Athanafii Kircheri » 
CHINA ILLUSTR ATA. 
Experiments for ImprovitJg the Art of Gunnery. 
The hettn to determine the three Grand Defiderata, in the A rc of Gunnery 
viz. I . The Point-blank diftance. 2, The Qaancity of Powder for the jup 
Charge cf any Peece. 3. fvhat Gun (for Size, Bere, Weighty Metal, ^c) 
shoots Fartheft ; The following Exferiments are propofed and dire fi:ed^ ij Sr. 
R obert Moray j to give eccajion to fuch at are Curious in this Art^to improve 
the fame, as they /hail have 9pportmitj. who we cannot but f^ppofe will be fo 
generoHS^a-s to impart the Sficceffes and the Events of their Trjalsof this kind 
to the publisher of thefe Tranfadions • for f fir t her Improvement and Vfe, 
O Know 3 howF^raGun Shoot-s rcint-hlank^(^s 
they call it) that is 3 (o near the Level of the 
Cylinder of the Peece ^ that the difference is ei- 
ther not difcernable, or not confiderable: On 
a fit plat-form^ place and point the Gun at a 
Markj as large as the Bullet, Tome 50. 60. or more Yards diftant^ 
fo as the under-fide of the Mark may be in the fame Level or 
A a a Line 
