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Vol. I, No. 26. _____ December 25, I88O. 



CONTENTS. 



■ lontroversy between Professor Tait and Mr. spent er, (Edii ) ; An Illustration (the Traitand Spencer Controversy) ; Mr. Spencer's 



to Prof. Tail ; R< version in Floral Parts, hy William A. Buckbout ; The Classification of Science, I, by Rev. Samuel Fleming, 



l.l, D , I'll. I). ; Personal Danger Connected with Electric Li^h'ing; Report oi the Drcd^mi; Cruise of the U. s. Steamer Hlakc, 



imander Bartlett, During the Summer ol 1880, by Alexandei m > ■ Duration oi the Arctic Winter, by Lieutenant F. 



Schwatka, U. S. N. ; Sigsbee's Gravitating Trap, hi) Alex l< r Agassiz ; Dr. Siemen's Kieemeal Furnace ; licsdverizationof Lead 



by thi I E. Stoddart; I he Trrrestrial Pi • nol die ISr.izilian " Camboia," < allichth ys aspcr, by Professor 



Swift's Comet, by Mr. E. E. Barnard; New Companion to) Fornacis, by Mr. S. W. Burn'ham ; Professor Wat- 

 ronomical Di by Mr. A. N. Skinner; Pilosuj as a Teratological Phenomenon; Hooks Received; Announce- 



ments; Notes, Astronomical, Botanical, Chemical, Micro I Physical, etc., etc., etc. 



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