VIII CONTENTS. 



Einstein's tlieory of gravitaiou (On a sydte.n of curves occurring- in). 10. 



Ei.FCTKOCAiiDloGUAMS of surviving human embryos. 5)1)2. 



ELECTROMOTIVE EQUiLiBiUA (Tiie application of the theory of allotropy to). 6'J'J. 



ELECTROMOTIVE EQUILIBRIUM (Allotropy and). 807- 1002. 



ELECTRONS (Oil the theory of free) in metals. 236. 



ELEPiiAs ANTIQÜUS FALC. from the river Waal near Nijmegen. ?(51). 



ELLIPSES (The envelope of the osculating) which are described by the representative 



point of a vibrating mechanism having two degrees of freedom of nearly equal 



frequencies. 938. 

 EMBRYOS (Electrocardiograms of surviving human). 992. 

 ENERGY (On the law of the partition oO. HI. 84. IV. 401. V. 1082. 

 ENERGY QUANTA (A mechanical theorem of Boltzmann and its relation to the theory 



of). 591. 

 EQUATION OF STATE (Some difficulties and contradictions met with in the drawing up 



of the). 44. 



— (On the) of an ideal monatomic gas according to the (|uantuintheory. 227. 

 EQUILIBRIA in ternary systems. VïII. '.)<J. IX. 385. X. 540. XI. 597. XII. 739. XIII. 



841. XIV. 1136. 



ERRATUM. 336 490. 



ERRORS in space (The theory of Bravais on) for polydimensional space, with appli- 

 cation to correlation. 1124. 



KTHYLNITRAMINE (2.3.4.6 Tetranitro-pheiiyluiethyl- and). 369, 



ETiivLSULPH^TES (On the isomorphy of the) of the inetals of the rare earths, and on 

 the problem of eventual morphotropic relations of these salts with, analogous salts 

 of Scandium, Indium and Beryllium. 1095. 



EYKMAN (c.) presents a paper of Dr. C. J. C. Hoogeniiuyze and J Nieuweniiuyse: 

 "Influence of alcohol upon the respiratory exchange during rest and during 

 muscular exercise'". 164. 



— presents a paper of Mr. L. K. Wolff : "On the formation of antibodies after 

 injection of sensitized antigens". 6t0. 



fasciculus DE1TER3 ASCENDENS (Rolling movements and the ascending vestibularv 

 connections). 338. 



FIBRIN (On) in sol and gel state. Likewise a contribution to our knowledge of the 



blood-coagulation problem. 172. 

 F R AN c II I M o N T (a. P. N.) presents a paper of Dr. J. Tii. Born water: "On the 



synthesis of amido-oxalvlbiuret con Kg ". 198. 



I 



CONH CON II CONHtj 



— Contribution to the knowledge of tiie amides". 376. 



— pressnts a paper of Dr. H, J. Backer: "On the nitration of methylurea". 770. 

 galvanometer (A quick coil-). 149. 



— (Contribution to the knowledge of the string). 522. 



gas (On the equation of state of an ideal monatomic) according to the quantum- 

 theory. 227. 



