XXVIII GC OANAT HINTS 
Physiology. K. LANDSTEINER: “On heterogenetic antigen.” 1166. 
— W. STORM VAN LEEUWEN and F. VERrzáR: “Concerning the sensitivity 
to poisons in animals suffering from avitaminosis.” 1170. 
— H. ZWAARDEMAKER: “On the influence of the season on laboratory 
animals.” 1192. 
— S. vAN CREVELD and R. BRINKMAN: “A direct proof of the impermeability 
of the bloodcorpuscles of man and of the rabbit to glucose.” 1256. 
— R. BRINKMAN and Miss E. van Dam: “The significance of the con- 
centration of calciumions for the movements of the stomach caused 
by stimulation of the N. vagus.” 1262. 
— Miss M. A. vAN HERWERDEN: “Concerning the influence of the adrenal 
cortex upon the growth and the reproduction of lower organisms and 
its presumable antitoxis action.” 1339. 
— J. pe HAAN and S. vaN CREVELD: “The interchange between blood- 
plasm on one hand and humor aqueus and cerebro-spinal fluid on the 
other hand, studied from their sugar-percentages and in connection 
with the problem of combined sugar.” 1343. 
— A. DE KrEYN: “Experiments on the quick component phase of vestibular 
nystagmus in the rabbit.” 1357. 
— A. A. HIJMANS VAN DEN BERGH: “Concerning sulphaemoglobinaemia.” 
1392. 
— K. Komuro: “On smelling during complete exhaustion (resp. adaptation) 
for a given odour.” 1442. 
P1caRD (On the theory of). 585. 
PILOCARPIN-ATROPIN (A quantitative inquiry into the antogonism) on the 
surviving cat-gut. 628. 
PiNnKkKHor (M.). A new method of recording the modifications in aperture 
of stomata. (first comm.). 1303. 
PLANCK’s formula (Analogy with). II. 887. 
PLANE CUBICS (Degenerations in linear systems of). 797. 
PLEISTOCENE GLACIAL PERIOD (On the relation between the) and the origin 
of the Sunda sea (Java- and South China-sea), and its influence on the 
distribution of coralreefs and on the land- and freshwater fauna. 395. 
POINT-SPACE (Two representations of the field of circles on). 1323. 
Poisons (On adsorption of) by constituents of the animal body. II. The 
adsorbent power of rabbit's serum for atropin. 486. 
— (Concerning the sensitivity to) in animals suffering from avitaminosis. 1170. 
Por Jr. (B. VAN DER). Discontinuities in the magnetisation. 637. II. 980. 
POLLENGRAINS (On the influence of circumstances of culture on the habitus 
and partial sterility of the) of hyacinthus orientalis. 1289. 
POLONIELLA and Kloedenella (The identity of the genera). 993. 
