XVI CONTENTS 



MUSCLE FIBRES (The sympathetic innervation of the cross-striated) ofvertebrat.es 1227. 



(Are the cross-striated) of the extremities also innervated sympathetically ? 1231 . 



MDSCLES (Once more the innervation and the tonus of the striped). 1238. 



MDSCÜLÜS TBANSVERSÜ8 ORBITAE (On). 1007. 



NEON (The thermal conductivity of). 342. 



NERVES of Vertebrates (On two) agreeing in Structure witli the Nerves of invertebrates. 



756. 

 NERVOUS sySTEM (On the Peripheral Sensitive). 26. 



— ([s the post-embryonal growth of the) due only to an increase in size or 

 also to an increase in number of the neurones? 944. 2nd Part. 1024. 



NERVU8 TERMINAL18 (On the) from man to Amphioxus 172. 



NEURONE (The Significance of the Size of the) and its Parts. 711. 



NEURONES (Is the post-embryonal growth of the nervous system due only to an increase 



in size or also to an increase in number of the). 944. 2nd Part. 1024. 

 NIL RATAN DHAR. Catalysis. Part VI. Temperature coefficients ot heterogeneous 



reactions. 1042. 

 NON-EUCLIDEAN SPACE (On the equivalent of parallel translation in) and on Biemann's 



measure of curvature. 505, 

 NON-EUCLIDIAN linear element of the space (On the arising of a precession-motion 



owing to the) in the vicinity of the sun. 533. 

 NORDSTROM (g.). Calculation of some special cases, in Einstein's theory of gravi- 

 tation. 68. 

 NOEDSTRÖM-VAN LEEUWEN (Mrs. c.) and W . H. K.EESOM. Deduction of the 



third virial coefficient for material points (eventually for rigid spheres), which 



exert central forces on each other. 593. 



— Development of the third virial coefficient for material points (eventually rigid 

 spheres), which exert central attracting forces on each other proportional with 

 ?— 5 or *— 6. 602. 



N o R T (h.). The distance-correction for the plates of the Harvard Map of the 



Sky. 1212. 

 NULL-SYSTEMS in the Plane. 286. 



— (Linear) in the Plane. 302. 



— determined by two linear congruences of rays. 309. 



NUTRITIVE VALUE (Experiments with Animals on the) of Standard Brown-Bread and 

 White-Bread. 48. 



ODOROUS SUBSTANCES (On the spontaneous transformation to a colloidal state of solu- 

 tions of) by exposure to ultraviolet light. 131. 



— (Is there any Relation between the Capacity of) of Absorbing Kadiant Heat and 

 their Smell-Intensity? 476. 



OIDIUM LACT13, the milkmould, and a simple method to obtain pure cultures of anae- 

 robes by means of it. 1219. 



ONNES (h. kamerlingh) presents a paper of S. Weber: "The thermal 

 conduetivitv of neon". 342. 



