JI CON TEAN EIB, 
ANTIGENS (On the formation of antibodies after injection of sensitized). II. 318. 
antimony (The allotropy of). I. 645. 
APOPHYLLITE (On the real symmetry of cordierite and). 430. 
ARIËNS KAPPERS (C. U.). v. Kappers (C. U. ARIENs). 
ARSENIC TRISULPHIDE soLs (The connection between the limit value and the concen- 
tration of). 1158. 
ARSENIOUS OXIDE (Compounds of). I, 1111. 
ARTERIA cerebelli posterior inferior (A case of occlusion of the). 914. 
Astronomy. J. Wouter Jr: “On SEELIGER’s hypothesis about the anomalies in the 
motion of the inner planets”. 23. 
— W. pr Sirrer: “Remarks on Mr. WorrtJer’s paper concerning SEELIGER’s 
hypothesis”. 33. 
— W. pre Sitrer: “The figure of the planet Jupiter”. 1047, 
— W. pr Sirrer: “On the mean radius of the earth, the intensity of gravity and 
the moon’s parallax”. L291. 
— W. pe Sirrer: “On isostasy, the moments of inertia and the compression of 
the earth”. 1295. 
— W. pe Srrrer: “The motions of the lunar perigee and node and the figure of 
the moon’. 1309. 
ATEN (A. H. w.) and A. Smits. The application of the theory of allotropy to electro- 
motive equilibria. If. 37. III. 680. ; 
ATLANTIC OCEAN (On the relation between departures from the normal in the strength 
of the trade-winds of the) and those in the waterlevel and temperature in the 
Northern European seas. 1147. 
ATOMIC FORCES (The calculation of the molecular dimensions from the supposition of 
the electric nature of the quasi-elastic). 877. 
BAAT (W.C. DE) and F, A. H. ScHREINEMAKERS. The system : copper sulphate, copper 
| chlorid, potassium sulphate, potassium chlorid and water at 30° C. 533. 
— On the quaternary system KC]l—CuCl,—BaClon—H,O. 781. 
— Compounds of the arsenious oxide. I. 1111. 
BACKER (H. J.) and A. P. N. FRANCHIMONT. The coloration of some derivatives of 
picrylmethylamide with alkalies. 647. 
— z-Sulpho-propionic acid and its resolution into optically active isomerides. 653. 
BAKHUYZEN (H.G. VAN DE SANDE). Comparison of the Dutch platinum- 
iridium Metre NO, 27 with the international Metre M as derived from the 
measurements by the Duth Metre Commission in 1879 and 1880, and a prelimi- 
nary determination of the length of the measuring-bar of the French base 
apparatus in international metres. 311. 
—- N. Winprsorr and J. W. DrreerINK: “Comparison of the measuring bar 
used in the base measurement at Stroe with the Dutch Metre N® 27. 300. 
BASE MEASUREMENT (Comparison of the measuring bar used in the) at Stroe with the 
Dutch Metre No. 27. 300. 
BEEGER (N. G. W. H.). On Hermrre’s and ABEL’s polynomia. 192. 
BENZENE DERIVATIVES (The replacement of substituents in). 1027, 
