lv CONTENTS. 
NUMBER XXVI 
— Be ue the Spectrum of the Aurora of October 14th, 
sty Guonat ¥. Dameee, (255.525 20 558 et 
>. 0c is Quartzite, Limestone and associated rocks of the 
ITi 
~ Distribution of Chemical Force in the Spectrum ; by 
Dra luded, 
Page 
HN Wit1i1AM DraPEr, ares - -aepule eek as 91 
XII. aaa: of Recent Dredgin Expeditions on bees Coast 
of New England; by A. E. Verritt, Spee C0) pisss 8 
XIIL—A description of the Victoria Meteoric Iron, with notes 
on Chladnite or Enstatite; by J. Lawre wars Sac BiH 107 
XIV.—Analytical Notices ; by Woxcorr Gipss,-. .---.---- 110 
XV.—On the gigantic fossil Mammals of ie Orda Dinoce- 
rata; by O. C. Marsu. With two plates. 117 
XVIL—On the Experimental Detennineeeae of the relative In- 
tensities of Sounds; and on the measurement of the powers 
of various substances to reflect me to transmit Sonorous 
Vibrations; by ALFRED 23 
XVII.—Meteoric Shower of Nov. 27-28, 1872, as observed at 
the Observatory of Montcalieri, Italy ; by Padre Denza, 126 
XVIII.—Experiments for the de termination of the height to 
which liquids may be poe above the edge of a vessel; 
T. C, MenpenHaL 
SOIENTIFIO INTELLIGENCE. 
Chemistry and Physics—On the spectrum of nitrogen, SHUSTER, 131.—On new 
modes of forming amides and nitriles, Lerts: On bibromide of niet BIEDER- 
MANN and OPPENHEIM: On cymol from oil of turpentine and oil of lemons, OPPEN- 
HEIM, 132.—On the combinations of yttrium and erbium, CLEVE and HOEGLAND, 
stkchusiiona: LapensurG: Triphenylmethane, KexuLé and esa ag, soa 
saris i of eRe PT Uneer, 135.—New Coal-tar Hydrocarbons, Firri 
Platform Balance, 136 
bake and Natural History—On Tin discoveries in Queensland, a : severe 
137.—On the Devonian Fossils in the Wahsatch ae S Tenney, 139,—The 
Eruption of Vesuvius in 1872, L. Parmrert; Geological Chart of Swollen: Koks- 
ce 
Botany, British and Foreign, 143.—Discharge of the Seeds of Witch-Hazel (Hama- 
melis): Chi 
is): Chlorodictyon, a new Genus of the Danian Group, J.G. AGARDH, 144.— 
i Pilulari i i s: Les Mélastoma 
—Meteors of Nov. — 1872, in Europe, 150.—On a new Meteorite 
Astri 
fond € in ‘Indiana, Prof. Cox 
Miscellaneous Scientific Jabitabiiins Resi Si by J. LeConts, 156.—Syracuse Univer- 
sity: the sige Great Magnet, A. M. MaYeR, 157.—Revision of Aga Echini, A. 
AGassiz, 158.—Wagner’s Chemical enact ok Wwa.CrookEs, 159.—Alizarine, 
natural and artificial, F. VeRSMANN: Transactions of the Wisconsin Academy of 
Sciences: Das Elbthalgebirge in Shion H. B. GEINir 
ippendix—On i 
161.—The Eruption of Vesuvius in 1872, by L. Paumreri, 162 
