I hope, our Ingenious Correfpondents have examined all circum^ 
ftances of their communicated Relations, with all the care and di- 
ligence nceflary to be ufed in fuch Collediions^ not takiag up old 
Fame, or flying Reports, upon too eafie truft ^ not ftraining for 
other Kinds ot Wonders^ than the mofl: wife Author of Nature 
hath allowed, but attending clofely to the An£t meafures of Na- 
tural Truth, and to the ufeful Contrivances of Jrt, For fome 
evidence whereofj I refer the Reader to ihe particularSjindicatedin 
the Tables annexed to ihtTra^oi February, lately paft. 
And becaufe wcUadvifed Hifl:oriesx)f Natural ProdH6}ms,zvii 
of Artificial Contrivances ^ zxt ntceflary to beget found know- 
ledge, and to ^AT/V^ profitable Inventions, fome have furnifhtus 
with accurate Inftrudiions, under the modefl Title of Inciuiries and 
Trof ofah' And further Difquifitions are by the hands of many 
Accomplifht Perfons feverally,and often with joynt endeavours in 
a manner univerfally profecuted. 
Neither have we difcouraged or refufed the EflTaysof fome fa- 
mous PhilofopherS; learned Philologers and Antiquaries 5 whofe 
Difquifitions, Readings, and Reafonings, have extended farther 
than their Experiences s fince by fuch bold Excui fions and sallies 
many valuable Trutl s may be ftarted out of their receffes. 
jrchite5fs do require fome variety and ftore of Materials for the 
further fatisfa6iion of their Judgment in the Choicer And the 
S^c u Ipt cr mufi pare off fomewhat of his richefl: Marbles, Onixes^, 
Diamonds;^ &c before he can perfe^ the Pourtraiifture. Such li- 
berty an exad Philofdpher muft claim in his Extra61s from Men of 
much Learning, 
In Medicinals we have now and then occaffonally inquired after 
fome rarities, medical applications and experiences what the 
ufes and performances are by Phkbotomj, Fri^ims, Simples or | 
Compounds not ordinary, by Diet or Chymical Operations in \ 
fome of the remoteft parts of the World, particularly in the fa- 
See N. 7. p. 44. Dmps. n^ous China. Neither have we altoge- 
iv.8.p.i3j. Po/fonousfprings ther Omitted to commemorate thofe ^ 
"'HTp.^^,smrms of in^ obvious rdieft , which the Diviuc i 
fs^s. Ibid p.i?,8.strangee';n- Bouuty has offered freely and in com- 
tiiauions of Budi ^ ^^^^^ diftreffed Mortals, by Springs, , 
Baths, Bolus's , Medicated Earths , (jrc. And we have had a | 
due I 
