xit CONTENTS. 
PLACE (r.) presents a paper of Dr. Avex. KrerN : „The physiological bacteriology of the 
intestinal canal (The bacteriological relations in the intestinal canal of the 
rabbit)”. 477. 
‚— presents a paper of Dr. J. Boeke: „On the infundibular region of the brain 
of Amphioxus lanceolatus”. 695. 
— presents a paper of Dr. J. W. LANGELAAN: vThe principle of entropy in 
physiology’. 698. 706. 
PLAIT-POINT constants (The dependence of the) on the composition in binary mixtures 
with small proportions of one of the components. 293. 
POINT (Analytical determination of the ninth) in which two curves of degree three, 
passing through eight given points, intersect each other. 103. 
POLARISATION (The dispersion of the magnetic rotation of the plane of) in negatively 
rotating salt-solutions. ll. Further measurements with potassium ferricyanide. 339, 
— (The rotation of the plane of) in moving media. 669. 
POLLEN (On the irritable stigmas of Torenia Fournieri and Mimulus luteus and on 
means to prevent the germination of foreign) on the stigma. 184, 
POLYNOMIALS (Series of). I. 525. II. 620. 
POTASSIUM ferricyanide (Further measurements with). 339. 
PRESSURE (Accuracy of the measurement of) by means of the open manometer of 
KAMERLINGH ONNES. 28, 
— (The iucrease of) at condensation of a substance, with small admixtures. 659. 
PREY (c.). Synthesis of trioxybutyric acid (erythric acid). 77. 
PRISMOID (A formula for the volume of the). 337. 
PROJECTING-MICRO:COPE (An apparatus for focussing the) from a distance. 95. 
RABBIT (The bacteriological relations in the intestinal canal of the). 477. 
RADIATION (The intensity of) and the motion of the earth. 678. 
REACTIONS (On the influence of the position of atomgroups in aromatic compounds 
on the process of the). 161. | 
RESOLVING POWER (Some observations on the) of the MicHELson echelon spectro- 
scope. 247. 
RIVERS (On the supply of sodium and chlorine by the) to the sea. 388. 
ROMBURGH (Pp, VAN). On the action of nitric acid on alkylated amides of p-toluene- 
sulphonic acid. 616. 
— On some further constituents of the essential oil of Kaempferia Galanga L. 618. 
ROOZEBOOM (H. W. BAKHUIS). See BAKHUIS ROOZEBOOM (H. W.). 
ROTATION (The) of the plane of polarization in moving media. 669. 
RIJNBERK (G. VAN) and C. WINKLER. On function and structure of the trunk- 
dermatoma. I. 266. IL. 308. III, 509. 
SALINE SOLUTIONS with two boiling points and phenomena connected therewith. 371. 
SALOMONSON (J. K. A. WERTHEIM). See WERTHEIM SALOMONSON (J. K. A). 
SALT-SOLUTIONS (The dispersion of the magnetic rotation of the plane of polarisation 
in negatively rotating). 11. Further measurements with potassium ferricyanide. 339. 
SAND (Examination of specimens of) from borings done at the works of the outer 
harbour at Scheveningen. 464. 
aa a” 
