WILLIAMS AND NORGATE,

14 HENRIETTA STREET, COVENT GARDEN, LONDON; AND
20 SOUTH FREDERICK STREET, EDINBURGH.

1894.

PRINTED BY

JOHN LINDSAY, HIGH STREET, EDINBURGH.

120432

Some short notes of interest to Teachers [Title],

4

6

13

32

39

47

60

97

104

117

129

129

PAGE 7. Last line but one, W. J. should be J. W.

23. Last line but one, maximum should be minimum.

48. The following historical note in reference to (5) has

been omitted :-

As regards the expressions for s, S1, S2, S3 some

are given in Heron's theorem regarding the area of

a triangle; some are given by Euler in Novi Com-

mentarii Academiae...Petropolitanae for the years

1747-8, I. 49-66 (1750). All except those where

D, E, F occur are given in the Ladies' Diary for

1759; all are given by T. S. Davies in the Ladies'

Diary for 1835, pp. 51-2.

Six of the expressions for a, b, c are given by

T. S. Davies in the Ladies' Diary for 1835, p. 52.

PROCEEDINGS

OF THE

EDINBURGH MATHEMATICAL SOCIETY.

FIRST SESSION, 1883.

The EDINBURGH MATHEMATICAL SOCIETY owes its origin to the suggestion of the late Mr A. Y. FRASER, at that time one of the mathematical masters in George Watson's College, Edinburgh. With him were closely associated Mr A. J. G. BARCLAY, now of Glasgow High School, and Dr C. G. KNOTT of the University of Edinburgh. The following is the circular which they issued to those persons throughout the kingdom whom they deemed likely to take an interest in such a Society:

DEAR SIR,

EDINBURGH UNIVERSITY,
January 23, 1883.

We, the undersigned, beg to call your attention to the following proposal, in the hope that you will find it in your power to give it your support:

It is proposed to establish, primarily in connection with the University, a Society for the mutual improvement of its members in the Mathematical Sciences, pure and applied.