CONTENTS. VII 



GODEAUX (LUCIE n). The theorem of Ghassmann in a space of » dimensions. 271. 



GRASS MANN (The theorem of) in a space of n dimensions. 271. 



GROOT (g, J. de) and J. Boeke. Physiological regeneration of neurofibrillar endnets 



(tactile discs) in the organ of Eimer in the mole. 452. 

 HAIR (Is red) a nuance jr a variety? 321. 



HAL0GENE-DER1VATIVES (On the form-analogy of) of Hydrocarbones wilh open chains. 623. 

 HALOGENE-SUBSTITUTION PRODUCTS (On the Tri-para) of Triphenylmethane and Triphe- 



nylcarbinol. 789. 

 HAMBURGER (h. j). A method to extract enzymes and pro-enzymes from the mucous 



membrane of the digestive tube and to establish the topic distribution of them. 250. 



— A method of cold injection of organs for histological purposes. 687. 

 HAMBURGER (h. J.) and E. Hekma. Quantitative researches on Phagocytosis. A 



contribution to the biology of Phagocytes. 144. 



HEART (Nerve influence on the action of the). 1st Communication. Genesis of the 

 alternating pulse. 78. 



HEABT SOUND (On a third). 93. 



keen's (d e) and Teichner's experiments (Eepetition of) on the critical state. 215. 



HEKMA (e.) and H. J. Hamburger. Quantitative researches on Phagocytosis. A con- 

 tribution to the biology of Phagocytes. 144. 



HELIUM (Isotherms of) between +100° C. and —217° C. 445. 



— at — 253° C. and - 259° C. 741. 



— (Derivation of the pressure coefficient of) for the international helium thermome- 

 ter and the reduction of the readings on the helium thermometer to the absolute 

 scale. 589. 



— (On the condensation of). 744. 



— (Experiments on the condensation of) by expansion. 744, 

 HESTIA (On periodic orbits of the type). 47. 



Histology. H. J. Hamburger : "A method of cold injection of organs for histological 



purposes". 687. 

 holleman (a. F.) presents a paper of Ur. J. J. Blanksma : "On tlie constitution 



of VAN Geuns' oxyraethyldinitrobenzonitrile". 509. 

 HOOGEWERFF (s.) presents a paper of K. A. Weerman : "Action of potassium 



hypochlorite on ciunamide". (2nd Communication). 308. 



— presents a paper of B. W. van Eldik Tuieme : "The action of concentrated 

 sulphuric acid on glycerol esters of saturated monobasic fatty acids". 855. 



HYDROCARBONES (On the form -analogy of Halogene derivatives of) with open chains. 623. 

 HYDROGEN (Isotherms of) between —104° C. and —217° C. 204. Continued. 413. 



— between 0° C. and 100° C. 419. 



— (The absorption spectra of the compounds of the rare earths at the temperatures 

 obtainable with liquid) and their change by the magnetic field. 592. 



INFANTS (Relations between mortality of) and high temperatures. 296. 

 INJECTION (A method of cold) of organs for histological purposes. 6S7. 

 INTEGRAL (On an infinite product represented by a definite). 347. 



