CONTENTS. 



ABSORPTION of light (Oil the influence of different substances on tlie) by thin tungsten 



layers. 1078. 

 ACIDS (The heterocinnamic) of Erlenmeyer .Jr.. 1048. 

 AEKOPLANE (An instrument to be used by tlie pilot of an) to measure the vertioal 



velocity of the machine. 458. 

 A G D Ü H R (e R I k). Is the post-embryoual growth of the nervous system due only to 



an increase in size or also to an increase in number of the neurones? 944. 2nd 



part. 1024. 



— Are the cross-striated muscle fibres of the extremities also innervated sympatheti- 

 cally? 1231. 



ALLYLBROMIDE (The Addition of Hydrogenbromide to). 90. 

 AMPHioxus (On the Nervus Terminalis from man to). 172. 

 AMPHloxus LA.NCEOLATÜS (On the Anatomy of the Larva of) and the Explanation of 



its Asymmetry. 1013. 

 AMPLIFIER (The audion as an). 932. 

 ANAEROBES (Oidium lactis, the milkmould, and a simple method to obtain pure cultures 



of) by means of it. 1219. 



Anatomy. J. W. van W'ijhe: "On the Nervus Terminalis from man to Amphioxus". 172, 



— A. B. Drooqleever Portuyn : "The Involution of the Placenta in the Mouse 

 after the Death of the Embryo". 231. 



— H. 0. Delsman : "The egg- cleavage of Vol vox globator and its relation to the 

 movement of the adult form and to the cleavage types of Metazoa". 243. 



— L. Bulk : ''On the topographical relations of the Orbits in infantile and adult 

 skulls in man and apes". 277. 



— A. B, Droogleever Fortuyn : 'On two Nerves of Vertebrates agreeing in Struc- 

 ture with the Nerves of Invertebrates". 756. 



— EuQ. Dubois: "Comparison of the Brain Weight in Function of the body Weight, 

 between the Two Sexes". 850. 



— Erik Agduhr: "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 neurones?" 944. 

 2nd part. 1024. 



— A. A. HuEBER: "On Musculus Transversus Orbitae". 1007. 



— J. VV. VAN Wyhe : "On the Anatomy of the Larva of Amphioxus lanceolatus 

 and the Explanation of its Asymmetry". 1013. 



— D. J. HuLsuoFF PoL: "Experimental cerebellar-atactic phenomena in diseases 

 lying extra -cerebellar". 1095. 



88 

 Proceedings Royal Acad. Amsterdana. Vol. XXI 



