CONTENTS. 



thefe propofitlons, and of the coUefllon of propofitlons into Syllogifni.— Of the won- 

 derful hivention of the Syllogifm, and of the whole logical works of Ariftotle.— Syl- 

 logiftn alone not fufficient for Science. — ^There muft be alfo Definition.— Of the na- 

 ture of Definition. — The terms of propofitions may confift of feveral ideas, exprefled 

 by feveral words. — ^This illuftrated by the example of the firfi: axiom of Euclid. — 

 Definitions, therefore, as well as Axioms, necelll\ry for Science. — Of the utility of* 

 Logic, and the neceffity that a man, who pretends to be learned in any fcience, 

 Ihould know what fcience is. — Opinion among men, prior to fcience or demonftration. 

 — All men, when they firft begin to think, form Opinions, — and moft men never 

 go farther. Polybius's definition of Man, that he is an opinion-forming animal. — 

 This not fo good a definition as Ariftotle's. — Ariftotle gives a fyflem of reafoning 

 from Popular Opinions, which he calls Dialeftics ; and with this, and his treatife 

 De Sophi/licis Elenchis, he concludes his great work of Logic. — Summary of this 

 work. Page 7 1 



CHAP. VIIL 



Of the neceffity of arts and of fciences and a regular polity among Men. — "Without 

 thefe, men cannot be happy though aflbciated ; and in certain circumftances may be 

 moft miferable. — This proved by the example of the people of Paraguay in South 



America. Of the two Authors, Charlevoix and Muratori, who give us the hiftory 



of this people. — ^The laft may be thought the more credible hiftorian ; but Charle- 

 voix's Narrative well vouched. — The country of Paraguay of prodigious extent. — 

 The inhabitants of it living under no government, not even the family government, 

 except in time of war -, — the moft favage and brutal people we read of; — no faith or 

 honerty among them, nor fenfe of the Pukhrum and Honejium; — addi<fted to the ufe 

 of ftrong liquors, which made them ftill more barbarous ; — very dull and fhipid 

 when the Jefuits came among them, but capable of being taught ; — more difeafed 

 than any civilifed people. — This accounted for. — Example of other men who have 

 lived in a brutifh manner, but not fo brutifh as the Paraguaife before they were ci- 

 vilifed. — Of the hardftiips and dangers the Jefuits went through in civilifing them. 

 — Had the greateft difficulty to get at feveral of thefe nations, through defarts and 

 forefts. — Had their languages to learn •, — and their Sorcerers and Magicians to en- 

 counter. — Their greateft obftacle was their apprehenfion of the Spaniards making 

 Slaves of them when they were Chriftians. — Of the martyrdom the Jefuits fuffered, 

 to the number of 30. — Of the oppofition they met with from the Spanifli noblemen 

 who governed the commaderles. — Notwithftanding all thefe obftacles, the Jefuits in 

 the beginning of this century had eftablilhed 30 Miffions. — ^The greateft order and 

 good governnient in all Uiofe mifiions. — The Jefuits did not chufe that the number 



in 



