^ (477) 
10. The Powder iifed in a Set of thefe ExperimentSj ought 
to be all of the fame goodnefi. 
r I. Th^ fame Bullet is to be made ufe of, if it can be had ^ 
till the Figure of it be marred 5 otherwife another as mear of 
tiiQ fame Size, Shapej and Weightj as is poffible. 
12. The ftrength of the Wind ^ is to be obferved at euerf 
time of Shooting • which may be done by an Engine^ made by 
the lately nam'd Operator. 
13. ObfervealfothePofitioD of the Wind^ V\/ith a Fane and 
Compafs at every Shot. 
14. Note alfo^ at what Azimuth the Mark ftands from the Gun, 
15. Take precife notice , what effeft the Wind hath every 
time upon the Bullet^ in carrying further^ in hindering^ orturn^ 
ingitafide. 
i^. Note the Figure, dimenfionSs and Weight of the Guo^ 
Carriage and Wheels. 
17. The plat- form to be very Levell. 
18. The Wheels to be at every Shot placed in the very fame 
place and pofition, to avoid inequalities. 
19. Every thing to be ex^ff/y recorded in a Book 5 as alio e* 
very Accident and Gbfervation. 
20. After all other Experiments are madcj every Peece may 
be try ed with the right Charge of Powder 3 laying every time 
more and more Weight upon the Carriage 5 and at laft fixing 
the Gun fo^ as it may not recoyle at all, obferving every time 
how far the Bullet goes, and how much lefs Powder than the 
full Charge will ferve to Shoot the Bullet, when thePeeeei^^ 
fixt, as far as the whole Charge does, when it rccoyls freely, 
21. Care is to be had, that the Experiments with the IVedge^ 
Tampion^ and the like, made for encreafing the force of the 
Powder^ and the fixing of the Peece^do not endanger it. 
1. The Long Guns are to be made ^ without any about ijf 
the Muzzle. 
2. The pieces cut of from the Muzzle, to be alwayes Lid oa 
the Carriage 5 when new (hots are made, or their weight of 
Lead in a convenient Figure, that the recoyl may ftill be the 
lame. 
3. The Quantity of Powder, that Shoots furtheft i;^ an Ordh 
n-ary Cuivtrln being known^ there qeedsno Variation of it in th© 
liong one. 
