XXII GEO NT BN TND 
WINKLER (c.) presents a paper of Dr. D. J. Huusnorr Por: “The ape fissure 
— Snleus lunatus — in man”, 219, 
— presents a paper of Dr. F. Rogts: “Some further experiments on Inhibition 
proceeding from a false recognition”, 628. 
— presents a paper of Dr. D. J. Hursnorr Por: “The development of the Fossa 
Silvii in embryos of Semnopithecus”. 938. 
— presents a paper of Dr. F. Rogis: “Intercomparison of some results obtained 
in the investigation of memory by the natural and the experimental learning- 
method.” 1242. 
WOLFF (J.). On the nodal-curve of an algebraic surface. 1115. 
WOLTJER JR. (J.). On the theory of Hyperion, one of Saturn’s satellites. 1225. 
ZEEMAN (Pe). Direct optical measurement of the velocity at the axis in the appa- 
ratus for Fizrau's experiment. 125. 
— presents a paper of Dr. C. M. HoocEensoom: “On the influence of an electric 
field on the light transmitted and dispersed by clouds.” 415. 
— presents a paper of Mrs. E‚ 1. Hoogensoom-Smip: “Comparison of the Utrecht 
pressure-balance of the Van ’t Hoff-Laboratory with those of the Van. der 
Waals-fund”, 649. 
— presents a paper of Prof. A. Smirs: “On the system mercury iodide”. 703. 
— presents a paper of Dr. F. E. C. Scnerrer: “On the allotropy of the ammo- 
nium halides”. ILI. 798. 
— presents a paper of Prof. A. Smits and Dr. C. A. Lory pe BRUIJN: “A new 
method for the passification of iron”, 880. 
— presents a paper of Miss A SNETHLAGE: “Experimental inquiry into the laws 
of the BROWNIAN movement in a gas”. 1006, 
ZERNIKE (r.) and L. S. Ornster. Contributions to the kinetic theory of solids. 
I; 1289. If. 1295. III. 1304. 
— The influence of accidental deviations of density on the equation of state. 1312. 
Zoology. A. SCHIERBEEK: “On the setal pattern of caterpillars”. 24. Il. 1156. 
— H. C. DELSMAN: “The gastrulation of Rana esculenta und of Rana fusca”. 906. 
— Mrs. C. E. DROOGLEEVER FORTUYN—VAN LEYDEN: “On an eel, having its left eye 
in the lower jaw’. 1120. 
— J. F. VAN BEMMELEN: “The colourpattern on Diptera wings” 1141. 
— H. C. DELSMAN: “On the relation of the anus to the blastopore and on the 
origin of the tail in vertebrates”. 1256. 
ZWAARDEMAKER (H.). Distance-relations in the effects of radium-radiation on 
the isolated heart. 1161. 
— The electrical phenomenon in cloudlike condensed odorous water vapours, in 
collaboration with H. R. Knoops and M. W. van per BĲL. 44. 
— presents a paper of Dr. H. M. ve Buruer and J. J. J. Koster: “On the 
determination of the position of the macula-planes and the planes of the 
semicircular canals in the cranium”. 49, : 
