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Contents of PROCEEDINGS, No. A 520. June, 1906. 



Price 2s. 



Page 



ON THE SPECIFIC HEAT OF, HEAT FLOW FROM, AND OTHER 



PHENOMENA OF, THE WORKING FLUID IN THE CYLINDER OF THE INTERNAL 

 COMBUSTION ENGINE. By Dugald Clerk, M.Inst.C.E 500 



THE STABILITY OF SUBMARINES. By Sir William H. White, K.C.B., F.R.S. 528 

 ON A METHOD OF OBTAINING CONTINUOUS CURRENTS FROM A 



MAGNETIC DETECTOR OF THE SELF-RESTORING TYPE. By L. H. Walter, M.A 538 



ON A STATIC METHOD OF COMPARING THE DENSITIES OF GASES. 



By Richard Threlfall, M.A., F.R.S 542 



A VARIETY OF THORIANITE FROM GALLE, CEYLON. By Wyndham R. 



Dunstan, M.A., LL.D., F.R.S. ~ K and B. Mouat Jones, B.A. (Oxon.), Assistant in the Scientific and 

 Technical Department of the Imperial Institute . . . . . . . . . . . , . . . . . . . . 546 



SOME STARS WITH PECULIAR SPECTRA. Bv Sir Norman Lockyer, 



K.C.B., F.R.S., LL.D., Sc.D., and F. E. Baxandall, A.R.C.S 550 



INDEX 555 



TITLE, CONTENTS, ETC. 



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