JB/135/028/002

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Observations

There is the same<add>the morethe same</add> reason for joining the & 15 Prop. Book 3d
being divided than together as thee is for joining Prop XIV & XV
Book III

The several Cases of the 7 & 8 Prop. into one.

The Word Term is made use of by several of the Editors
in 2 very different senses, in one they mean a "Term of expression"in the Logical sense Term.
double meaning
in the other a in the Mathematical sense Term or boundary of a line Vid. to Chalis preface to 5th Book.

—

The Meaning of the Word each seems to be understood by
neither Euclid or any of his Editors, " [exaoros"] is the expression in
the Greek and the Translators share all of them translated
it litteraly into "each" without Considering the meaning of
but , prejudiced as in any many other cases to
the Infallibility to Euclid because what he says
in generalisation as if that was a reason he should Cunn's 3d Prop
5 Book.
Word Each be infallible, a remarkable example of the bad
effect of making use of this word each in as are
appropriate its real one, is to be found in 3d Prop
5 Book of Cunns Edition. He says "If the 1 to"
"the same Multiple of the 2d as the 3d of the 4th, and
taken Equimultiples of the 1st & 3d. Then we of the Magnitudes takenhe had by the and Equimultiple be Equimultiple 2d and 4th.

Each in its litteral sense in this Case is the same
as either, if so it let either be put into its room then will it
be "Then will either of the Magnitudes taken be Equimultiple
of the 2d & 4th but this is not the time there are in this instance
2 words which together but this the opposite that he intends to convey for it is determined which of the
two magnitudes taken shall be equimultiple of the 2d & which of the 4th but supposing the word
each did determine which
of the 2 magniiti you should
take the sentence would
then lead you into its own
for he says each is an
equimult. of the 2 and 4th
when he means that
therefore if he did expect
that each should determine
some one he saves could expect

any body to understand that
is equal to one, when he tells you it is to
both

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In treating of Propositions of Quantities Euclid makes use of Lines as examples and to distinguish the line or lines part or parts of lines, which he means to speak of at one instant from those which he means not to speak of at the same instant he fines to letters at the extremeities of each part line or part of a line. For example suppose he meant if of the line of B which is divided into A 3 parts, he meant to speak of the middle divisions C- he would pin the letters C C and call it the part C D - D Now C C the letters CD of themselves did give B you no idea of the part he mentions, but know he means by putting these letters to refer you to the line divided in question. When you look at that and have found the letter CD you see in the that their position denotes the middle division how much sooner might a it have been known that he meant the middle division if he had said so! for those the trouble of referring to the figure (by which you probably lost your place) would have been saved besides that of finding out the letters position of those letters with respect to the figure.

Identifier: | JB/135/028/002"JB/" can not be assigned to a declared number type with value 135.
Date_1		Marginal Summary Numbering	not numbered
Box	135	Main Headings
Folio number	028	Info in main headings field	observations
Image	002	Titles
Category	copy/fair copy sheet	Number of Pages	2
Recto/Verso	recto	Page Numbering
Penner	sir samuel bentham	Watermarks	[[watermarks::[gr with crown] [pro patria motif]]]
Marginals	sir samuel bentham	Paper Producer
Corrections		Paper Produced in Year
Notes public		ID Number	46146
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