Il C o N T i: NTS 



Astronomy. W. J. A. Scholten : "On the parall.nx of some stellar clusters". 1108. 



— W. DE Sitter : "Outlines of a new theory of Jupiter's satellites" 1289. 1300. 

 ATEN (a. h. v\'.). On the passivity of Chromium. I. 812. 2nd Communication. 1119. 



— A third kind of sulphur molecule. S24. 



ATMOSPHERE (Semi-diurnal horizontal oscillation of the free) up to 10 km. above 

 sea level deduced from pilotballoonobservations at Batavia. 119. 



ATMOSPHERICAL CIRCULATION (The") above Australasia according to the pilotballoon- 

 observations made at Batavia. 1318. 



AUSTRALASIA (The atmospherical circulation above) according to the pilotballoon-obser- 

 vatious made at Balavia. 1313. 



Bacteriology. Miss. M. A. van Hebwerden : "On the nature and the sigoiticance of 

 volutin in Yeast-cells". 70. 



— C. J. C. VAN HooGENHüYZE : "Researches relating to the etiology of Febris 

 exanthematicus." 465. 



BAKHUYZEN (E. F. VAN DE Sande) presents a paper of Mr. C. de Jong: "In- 

 vestigation concerning the precession-constant and the systematic proper-motions 

 of the stars". 956. 



balloon observations at Batavia (Semi-diurnal horizontal oscillation of the free 

 atmosphere up to 10 km above sea level deduced from pilot). 1)9. 



— (The atmospherical circulation above Australasia ac^cording to the pilot) made at 

 Batavia. 1313. 



BATAVIA Semi diurnal horizontal oscillation of the free atmosphere up to 10 km. 

 above sea level deduced from pilotballoonobservations at). 119. 



— (The atmospherical circulation above Australasia according to the pilotballoon- 

 observations made at). 1313. 



BECK (r. TH.), G. Meyer and A. Smits. On black phosphorus. 11. 392. 

 BEMMELEN (j. F. VAN). The wing-markings of arctiidae. 849. 



BEMMELEN (w. VAN). The atmospherical circulation above Australasia according to 

 the pilotballoon-observations made at Batavia. 1313. 



— and J. BoEREMA. Semi-diurnal horizontal oscillation of the free atmosphere up 

 to 10 km. above sea level deduced from pilotballoonobservations at Batavia. 

 119. 



BETAIN (Constitution-formula of «-aminoacids and of). 88. 



BINARY MIXTURES (Isothermals of di-atomic substances and their). XIX. 178. 



— (Isothermals of monatomic substances and their). XIX. 1160 



BLAAUW (A. H.) and Miss H. J. Folmer. Researches into the radioactivity of the 



lake of Rockauje 714. 

 BL.'V.CK BODY (The brightness of the) and the mechanical equivalent of light. 1036. 

 blood pressure (On the effect of Lobelin on the rise of) by Nicotin. 630. 

 BOCK wink EL (h. b. A ). Some considerations on complete transmutation. 3rd 



Communication. 449. 4th Communication. 609. 5th Communication. 893. 6th 



Communication. 910. 7th Communication. 924. 

 BODY (On the relation between the quantities of the brain, the neurone and its parts, 



and the size of the). 1328. 



