xit C70 NED UN ts, 
KORTEWEG (vp. J.) presents a paper of Dr. L. E. J. Brouwrr: “On continuous 
vector distributions on surfaces”. 3rd Communication. 171. 
— presents a paper of Dr. H. J. E. Bern: “The oscillations about a position of 
equilibrium where a simple linear relation exists between the frequencies of the 
vibrations”. 2rd part. 742, 
— presents a paper of Dr. L. E. J. Brouwer: “Continuous one-one transformations 
of surfaces in themselves’. 3rd Communication. 767. 
KRUYT (H. R.). The equilibrium solid-liquid-gas in binary systems which present 
mixed crystals. 2nd Communication. 206. 
LAAR (J. J. VAN). On the solid state. V. 454. VI. 636. 
Law of corresponding states (The behaviour of argou with regard to the). 1912. 
LEERSUM (P. VAN). On the alkaloid contert in the leaves of the Cinchonas. 210. 
LEEUW (Hu. L. DE) and A. Smits. On the unary trimolecular pseudo-terpary system: 
acet-, par- and met-aldehyde. 318. 
— On the system: acetaldehyde-alcohol. 329. 
— Confirmations of the new theory of the phenomenon of allotropy. I. $22. 
LENS-MWASUREMENTS and Emmetropisation. 446, 
ticnt (Note on the interpretation of spectroheliograph results and of line-shifts and 
on anomalous scattering of). 2. 
— (On the scattering of) by molecules. 92. 
— (Observations concerning anomalous dispersion of) in gases. LOSS. 
— (Ionization of gases by) emitted from Grisster tubes. 1114. 
LINDEN (T VAN DER) and A. F. HorLEMAN. On the introduction of halogen 
atoms into the core of the monohalogenbenzols. 429. 
—, A. F. HorLEMAN and J. C. Hartogs, The nitration of aniline and of some 
anilides. 956. 
—, A. F. Hoiteman and J. J. P. Va.eron. On a method for the quantitative 
analysis of ternary mixtures, 429. 
LINE-SHIFTS (Note on the interpretation of spectroheliograph results and of) and on 
anomalous scattering cf light. 2 
LINES (Cn the continuous connection between the three-phase) which indicate the 
equilibria between the two components in the solid condition with liquid and 
vapour respectively, in a binary system. 158. 
— H and K (The) in the spectrum of the various parts of the solar disk. 1263, 
LIPASE produced by microbes. 1200. 
Quips (On vapour-pressures in binary systems with partial miscibility of the). 865. 
Addendum. 957. 
LORENTZ (ul. A.). On the scattering of light by molecules. 92. 
— presents a paper of Dr. L. S. Ornzvein: “Determination of the pressure of a 
gas by means of Grsss’ statistical mechanism”. 135. 
— presents a paper of Mr. J. J. van LAAR: “On the solid state”. V. 454, 
VI. 636. 
— presents a paper of Dr. L. S. Ornsrein: “Some remarks on the mechanical 
foundation of thermodynamics”. L. 804. II. 858. 
