1118 Page 51 318 426 533 533 534 IKDEX OF SUBJECTS. ERRATA. VOL. LIX (Trans., lS9l). Line 15 froin bottom e t sep., for “ I n the paper . . . on the snbject,” read “ In this paper, Dunstan and Dpmond discuss my own experi- ments on the subject, the account of which was published in nbetract only (Proc. C?wn. SOP., 1889, 134) .” Figures 2 and 3 on tliis page are placed upside down, so that the obtuse axial angle is a t the lower part of the crystal instead of the upper part, as ststtetl in the contest. CH3C-C CH,*C=C*CII, I I I 1 10 fromtop, f o r “ CH 0 ” read “ CH3-CH 0 .” \A ‘A 9 ,, ,, f o r “ through y ” read (‘ through g,” 3 ,, bottom, for “ 0.2922 ” rend “ 0.2992.” 5 ,, top ,, “ (ignited). . . . . . 0‘44” rend ‘‘ (ignited).. .. .. 0.15.” ,, ,-N--C‘*X -N--N.X f\f \,-k-&.y H H c c 759 1’7 from top, for ‘‘ C12H7N202 ” read “ C12H8N202.y) HAXRISON AND SONS, PRINTERS IN ORDINARY TO HER MAJESTP, ST. MABTIK’S LANE.