II C ONT Es NES: 
Astronomy. C. pr Joxe: “Determination of the constant of precession and of the 
systematic proper motions of the stars, hy the comparison of KiistNER’s catalogue 
of 10663 stars with some zone-catalogues of the “Astronomische Gesellschaft””. 65. 
— EK. F. van DE SaNDE Bakuuyzen and J. E. pr Vos van STEENWIJK: “On 
a peculiar anomaly occurring in the transit-observations with the Leiden meridian- 
circle during the years 1864—1868”. 345. . 
-- W. pr Sirrer: “Planetary motion and the motion of the moon according to 
Einstein's theory”. 367. 
— C. SANDERS: “Contributions towards the determination of geographical posi- 
tions on the West coast of Africa”. IV. 465. 
— A. PANNEKOEK: “Calculation of dates in the Babylonian tables of planets”. 684. 
— J. Worrser Jr.: “On the theory of Hyperion, one of Safurn’s satellites”. 1225. 
ATEN (A. H. W). Some particular cases of current potential lines. I. 653. 1I, 768. 
— and A. Smits. The application of the theory of allotropy to electromotive 
equilibria. V. 133. 
A1oMs (A new group of antagonizing). [. 99: IL. 341. 
AVENA SATIVA (The influence of light- and gravitational stimuli on the seedlings of), 
when free oxygen is wholly or partially removed, 1165. 
Axis (Direct optical measurement of the velocity at the) in the apparatus of FizEav’s 
experiment. 125. 
BABYLONIAN tables of planets (Calculation of dates in the). 684. 
BACKMAN (k. L.). The olfactology of the methylbenzol series. 943. 
BAKHUYZEN (E. F. VAN DE SANDE) presents a paper of Mr, C. pe Jone: 
“Determination of the constant of precession and of the systematic proper motions 
of the stars; by the comparison of KüsrNER’s catalogue of 10663 stars with some 
zone-cutalogues of the “Astronomische Gesellschaft”. 65. 
— presents a paper of Mr. ©. Sanprrs: “Contributions towards the determination 
of greographical positions on the West Coast of Africa”, IV. 465. 
— presents a paper of Dr. A. PANNEKOEK: “Calculation of dates in the Babylonian 
tables of planets”. 684. 
BAKHUYZEN (E. F. VAN DE SANDE) and J. E. pe Vos VAN STEENWIJK. On 
a peculiar anomaly occurring in the transit-observations with the Leiden meridian 
circle during the years 1864— 1868. 345. 
BEMMELEN (J. F. VAN) presents a paper of Mr. A. ScHIERBEEK : “On the setal 
pattern of caterpillars’. 24. IL. 1156. 
— The colourpattern on Dipterawings. 1141. 
BEIJERINCK (M. W.). The enzyme theory of heredity. 1275. 
BINARY MIXTURES ([sothermals of monatomic substances and their). XVIII. 1058. 
BINARY sysTEMS (The equilibrium solid-liquid-gas in) which present mixed crystals. 
3rd Comm. 439. 4th Comm. 555. 
BLASTOPORE (On the relation of the anus to the) and on the origin of the tail in 
vertebrates. 1256. , 
BOCK WINKEL (H. B. A). Some considerations on complete transmutation. I. 856. 
IL, 1100. 
