C 5 I 97 J 
An Accomp of tm Books. 
I. tRAetS^ mitten by the HonourableKohtn^oyh, contain^ 
ing New Experiment/ touching the Relation betwixt Vhm^and 
Air, and about Explofion9.\ An Hjdrojlatical Difcourfi, oc 
cafioned by jbme OhjeSions of Dr. Henry More, &c '^ . To 
which is anmxH an Hydrojiatical Letter, about a Way of Weigh- 
ing water in water ; New Experiments^ of the Pofitsve or Re- 
lative Levity of Bodies under water s of the Air's Spring on 
Bodies under water and about the Differing PreiTure of 
Heavy SoXid^ and TMis. London^ i6j2. in §\ 
IN the firft oftheTrafls, which contains the New Experiments 
d\>o\iX. Relation betwixt Flame and Air^ the Noble Au» 
thor, after he had mentioned focne of the chief difEcultieSj 
both in ma\ing md judging of ihcfe ExperimentSjand occurred 
alfo to fome thoughts, that might arife in the Reader, about 
his not afcribing in thcfe Narratives fo abfolute and equal a ne- 
celEty of the Air to the produftion and confervation of all 
Flames^ as divers Men have concluded from his foriner Expe» 
riments ; after this, I fay, he divides this Difcourfe into /i^r^-e 
parts^ The firji delivers Nine Experiments concerning the 
Difficulty of producing Flame without Air ^ tryed efpecially 
on Brimjione^ Gunpowder^ and Aurum fulmmans^ in vacuo 
Boyliano^ Thej^^^^Wi^f^ contains i'/x Experiments touching the 
Difficulty of preferving Flame without Air in the faid vacuum 5 
tried upon Mineral bodies already kindligdjin order to receive 
phenomena of Flame, sndthe various ^e^reex, whcreia the Air 
is neceffary or helpful to them. The thirds furniftes jft/^^lxA 
periments of the ftran^ely A\&cK\\tVropagafnon ofASualFhme 
without the affifting prcfence of tlie Air 3 rried upon Spunc\^ 
Camphire, Gunpowder} which iaft 5 though fired it felf^ yet 
would not fire the contiguous grains in this Vacuum 9 except ia 
onetryal, wherein kindled coals biingemployed^it is guefled, 
that the Coals afting ftrongly at the fame time on the whole 
extent of the powder that was next to them (in the abfence of 
the 
