p. 11, 1. 1, for ^ = - =
��read W = m 2 7 , - = m,nia-j - ( ). dh 2 dri^dh^ r
equation (8), insert before each side of this equation, p. 13, last line but one, dele . p. 14, 1. 8, for XVII read XIV. p. 15, equation (5), for VpdS read Vpdxdydz. p. 16, 1. 4 from bottom, after equation (3) insert of Art. 389. p. 17, equation (14), for r read r 5 . p. 21, 1. 1, for 386 read 385.
1. 7 from bottom for in read on. p. 28, last line but one, for 386 read 385.
rf If iff /7 Jj 1 riff
p. 41, equation (10), for read .
p. 43, equation (14), put accents on #, y, z.
p. 50, equation (19), for , &c. read -, &c., inverting all the differ ential coefficients. p. 51, 1. 11, for 309 read 310. p. 61, 1. 16, for F=^sin0 read Z=Fsiud.
equation (10), for TT read n 2 . p. 62, equation (13), for f read . p. 63, 1. 3, for pdr read pdv. p. 67, right-hand side of equation should be
I ^ abcYzK ^ K l + ^A K ( \ (N ~^\
p. 120, equation (1), for downwards read upwards.
equation (2), insert before the right-hand member of each equation.
p. 153, 1. 15, for =f3 read =f^.
p. 155, 1. 8, for A A read AP.
p. 190, equation (11), for Fbq^ read Fbc^.
p. 192, 1. 22, for Tp read T p .
p. 193, after 1. 5 from bottom, insert, But they will be all satisfied pro vided the n determinants formed by the coefficients having the indices 1 ; 1, 2 ; 1, 2, 3, &c. ; 1, 2, 3, ..n are none of them negative.
p. 197, 1. 22, for (x 1} x lt &c.) read (a^sc^&c. 1. 23, for (a^, ce 2 , &c.) read (x-^x^^&c.
p. 208, 1. 2 from bottom, for Ny* read \Ny*.
p. 222, 1. 9 from bottom, for or ^l read =- or -$.
at at
p. 235, equations (5), for read fx j and in (6) for read
p. 245, first number of last column in the table should be 10 10 . p. 258, 1. 14, for perpendicular to read along.
p. 265, 1. 2 after equation (9), for -^- read -=;
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