geft, that the beft Expedienr would be, to find out a Wood 
having that quality. But certainly there being now no Tim- 
ber, fit for Ships, that is not known, 'tis not likely that any will 
be found either naore hard, or more bitter, than that^ which 
has been hitherto employed. Some do imagine 3 that the 
Propofer will , by certain Lixiviums ^ give to the ordinary 
Wood fuch a quality and bicternefsj as is found in the already 
mention'd /W^^w Pear tree. But this alfo will hardly luccecd, 
fiflce it will be requifite not only to make Lixiviums^ in great 
quantities at an eafie rate 5 and ftrong enough to penetrate 
the thick fides of a Ship , but alfo to make them durable e- 
nough, not to be wafli't out by the Sea. Yet notwithftan- 
ding, inthefe matters one ought to fufpend on's judgement, 
untill experience do lhew,what is to be believed or them. 
Safar the ExtraBWo which it may perhaps not be unfeafo* 
nable to add, that a very worthy perfon in London ^ fuggefts the 
Pitch , drawn out of Sea coles , for a good Remedy to fcare- 
away thefe noyfome infects. 
. An Account 
Of a Boo\j T/ery lately publijh% entkuled^ The Origine 
of Forms and Qualities 5 illufirated by Confidera- 
tiom and Experiments by the Honourable Robert 
This Curious and Excellent Piece , is a WnA oi IntroduBien 
to the Principles of the Mechanical Thilefophy^ cxpHcacing , by 
very Confiderable Obfervations and Experiments, what may 
be, according to fiich Principles , conceived of the Nature 
and Ortgine of Qualities and Forms , the knowledge whereof, 
either*makes or fyppofes the Fundamental and uieful part of 
I^atmdihilofQphy'^ . In doing of which, the Author 5. to have 
his way the clearer , writes rather for the Corpufcularian Phi- 
lofophers (as he is pleafed to call them) m Gemraly than any 
' " Earty. 
