GlOON EE EEN) LS, XXI 
SPECTRUM REGION (A Theory of a Method for the Derivation of the Distri- 
bution of Enersy in a Narrow) from the Distribution of Energy, 
Observed in an Interferometer. 200. 
STELLREFLEXE (On Optic) in the Dog and in the Cat. 948. 
STORM VAN LEEUWEN (W.). v. LEEUWEN (W. STORM VAN). 
Strutik (D. J.) and J. A. SCHOUTEN. On n-tuple orthogonal systems of 
n—l-dimensional manifolds in a general manifold of n dimensions. 
594. II. 684. 
SuGars (Further Researches in connection with the permeability of the 
slomerular membrane to stereoisomeric). 351. 
— (The partial permeability of the glomerular membrane to d-galactose 
and some other multi-rotatory). 360. 
SurFrur (Chemosynthesis at denitrification with) as source of energy 899. 
2-SULPHOPROPIONIC AcID (On the preparation of). 415. 
Sun (On the Effective Temperature of the) 89. II. 615. 
Sun’s Radiation (The Structure of the). 73. 
SYLVESTER (On a formula of). 555. 
Tea-LEAVES (The unsaturated alcohol of the essential oil of freshly fer- 
mented). 758. 
TEMPERATURE (On the Effective) of the Sun. 89. II. 615. — 
— -coefficients (Pressure- and), volume- and heat-effects in bivariant 
systems. 526. 
TERM by term differentiability (Theorem on the) of a series. 376. 
TIMOROCIDARIS GEN. NOV. und Bolboporites Pander). Ueber einige palaeo- 
zoische Seeigelstacheln. 696. 
Tin (Researches on the Spectra of), Lead, Antimony, and Bismuth in the 
Magnetic Field. 300. 
Tonic ReFLexes of the labyrinth on the eye-muscles. 242. 
TOPOLOGISCHEN GRUPPEN (Ueber die endlichen) der Kugelfläche. 568. 
TRANSFORMATIONEN (Ueber) ebener Bereiche. 475. 
— (Ueber eineindeutige, stetige) von Flachen in sich. Sechste Mitteilung. 811. 
TRIMORPHISM (The) of allocinnamic acid. 497. 
TruxiLuic Acips (The). 509. 
Uvrra-Fittrates (A method for the determination of the ion concentration 
in) and other protein free solutions. 762. 
UNTERKÖRPER (Bestimmung der Klassenzahl der Ideale aller) des Kreis- 
körpers der m-ten Einheitswurzeln, wo die Zahl m durch mehr als 
eine Primzahl teilbar ist. Iter Teil. 331. 2ter Teil. 395. 
Urease and the radiation-theory of enzyme action. III. 29. IV. 126. 
VARIABLES of different degree (On expansions in series of algebraic forms 
with different sets of). 268. 
