On Waring's Problem for Cubes ,

INDER CHOWLA

Raman Spectrum of Benzene Vapour .

S. BHAGAVANTAM AND A. VEERABHADRA RAO

On the Flexure of a Hollow Shaft—II.

B. R. SETS

A Note on the Mixed Tensor Tju1'..

V. V. NARLIKAR

On the Differential Equation of the Instability of a Thin Layer of
Fluid Heated From Below.

S. L. MALURKAR AND M. P. SRIVASTAVA

A Theorem of Erdos .

S. CHOWLA

On the Number of Solutions of Some Congruences in Two Variables

INDER CHOWLA

Variation in the Nocturnal Radiation from the Sky with Zenith
Distance and with Time during the Night

L. A. RAMDAS, B.N. SREENIVASIAH AND P. K. RAMAN

On the Fine Structure of the Balmer Lines

B. S. MADHAYA RAO

A Remarkable Property of the Integers Mod N, and Its Bearing on
Group-Theory .

R. VAIDYANATHASWAMY

The Raman Spectra of Crystal Powders. L The Halides and
Sulphate of Ammonium

R. ANANTHAKRISHNAN

The Raman Spectra of Crystal Powders. II. The Chlorides and .
Sulphates of Hydroxylamine and Hydrazine .

R. ANANTHAKRISHNAN

Dispersion of Depolarisation of Light-Scattering in Colloids.
Part I. Gold Sols.

R. S. KRISHNAN

Chemical Examination of the Constituents of Hydrocotyle asiatica
—Part I

M. A. WALI AND M. C. TUMMIN KATTI

Reaction between Nitric Acid and Tin in Presence of Catalysts—
Part I.

G. S. KASBEKAR AND A. R. NOEMAND

Maxwell Effect in Some Organic Liquids .

A. BALANKESWARA RAO

Studies in Colloid Optics. I Scattering of Light by Protein
Solutions .

K. SUBBA RAMAIAH

Studies in Colloid Optics. II. Scattering of Light by Silicic Acid
Sols and Gels .

K. SUBBA RAMAIAH

The Mineralogy and Chemical Composition of Garnets from the
Schist-Complex of Nellore.

N. JAYARAMAN

Differential Invariants for Path Spaces of Order 2.

V. SEETHARAMAN

X-Ray Studies of Wood, Lignin and Wood-Cellulose,

P. NILAKANTAN

The Raman Spectra of Crystal Powders. III. Exchange Reactions:
NH4C1 and D2O .

R. ANANTHAKRISHNAN

The Dipole Moment and Structure of Some Cyclic Anhydrides:
Phthalic, Succinic and Citraconic Anhydrides..

M. A. GOVINDA RAU AND IT. ANANTANARAYANAN

An Optical Method of Determining the Relative Coagulating Powers
of Electrolytes .

CH. V. JOGARAO

The Raman Spectra of Crystal Powders. IV Some Organic and
Inorganic Compounds

R. ANANTHAKRISHNAN

A New Solution of a Problem in Inverse Probability.

S. R. SAVUR

Some Remarks on the Birge-Sponer Method of Vibrational Extra-
polation .

R. K. ASUNDI AND R. SAMUEL

Note on the Structure of N+2 and its Bearing on the Theory of
Valency.

R. K. ASUNDI AND R. SAMUEL

Geometrical Inversion in the Acids Derived from the Coumarins.
Part IV. The Behaviour of the Ethers of the Cis and Trans
Acids

S. RANGASWAMI AND T. R. SESHADRI

Gravity, Geoid and Plumb-Line Deflections in Mountainous Areas

B.L. GULATEE

ON F(k) In Waring's Problem and an Analogous Function .

INDER CHOWLA

Heterocyclic Compounds—Part I. Coumarins from Cyclopentanone-
2-Carboxylate and 4-Methylcyclopentanone-2-Carboxylate

S. ZAFARUDDIN AHMAD AND R. D. DESAI

The Raman Spectra of Some Simple Molecules. (Dimethyl Ether,
Phosgene, n-Butane, Ethylene Diamine, Ethylene. Glycol, Ethy-
lene Dichloride, Ethylene Dibromide, Acetylene Tetrachloride,
Acetylene Tetrabromide and Hexachloroethane)

R. ANANTHAKRISHNAN

Microphone Actuated Thyratron Relay .

C. V. RAJAM.

Dispersion of Depolarisation of Light-Scattering in Colloids.
Part II. Silver Sols .

R. S. KRISHNAN

Derivatives of Salicylic Acid. Part XI. Bromo-Salicylic Acids and
their Methyl Ethers.

N.W. HIRWE AND B. V. PATIL

Lattice-Theory of Alkaline Earth Carbonates .

B. Y. OKE

The Preparation of Ortho-Phthalaldehydic Acid .

B. B. DEY AND T. K. SRINIVASAN

Differential Invariants for Path Spaces of Order 3..

V. SEETHARAMAN

The Paramagnetic Susceptibility of Lithium .

S. RAMACHANDKA RAO AND S. SRIRAMAN

A New Separation of the Components of Psoralea corylifolia, Linn.

T. R. SESHADRI AND C. VENKATARAO

Pigments of Cotton Flowers. Part IV. Constitution of Herbacitrin
and Herbacetin—New Glucoside and Aglucone (Flavonol).

K. NEELAKANTAM AND T. R. SESHADRI

On the Band Spectrum of Mercurous Iodide

T. S. SUBBAKAYA, B. NAGESHA RAO AND N. A. NARAYANA RAO

On the Band Spectrum of Cadmium Iodide

T. S. SUBBARAYA, N. A. NARAYANA RAO AND B. NAGESHA RAO

Derivatives of Salicylic Acid. Part XII. Nitro-Salicylic Acids and
their Methyl Ethers

N. W. HIRWE AND (Miss) K. D. GAV ANKER

On a Conjecture of Chowla

HANSBAJ GUPTA

Light-Scattering, Raman Spectra and Allied Physical Properties of
Some Essential and Vegetable Oils

C. DAKSHINAMURTI

Dispersion of Depolarisation of Light-Scattering in Colloids. Part III.
Platinum, Copper, Selenium and Tellurium Sols

R. S. KRISHNAN

X-Ray Analysis of the Structure of a Fibrous Modification of
Tourmaline .

S. RAMA SWAMY AND K. Y. SEINIVASA IYENGAR

Note on the Absorption Spectrum of Phosphorous Pentaselenirde
Vapour.

MOHD. ISRARUL HAQ AND R. SAMUEL

Absorption Spectra of Solutions of Some Halides and Oxyhalides ofS, Se and Te .

R. SAMUEL AND M. USMAN

On the Linear Algebra .of Classes of Elements in a Finite Abelian
Group .

T. VENKATARAYUDU

The Condensation of Aldehydes with Malonic Acid in the Presence
of Organic Bases. Part VIII. The Condensations of o- and rn-
Methoxybenzaldehydes.

KANTILAL CHHAGANLAL PANDYA AND TOQUIR AHMAD VAHIDY

Tautomerism of 2-Phenyl-3-Carbethoxy-4-Hydroxy-Quinoline

V. E. HEERAMANECK AND R. C. SHAH

The Raman Spectra of Crystal Powders. V. Inorganic Nitrates:
Water of Crystallisation

R. ANANTHAKRISHNAN

The Elastic Properties of Mo,ther-of-pearl .

P. S. SRINIVASAN

The Physical Identity of Enantiomers. Part III. Viscosities,
Densities and Refractivities of d-, ]-, and dl- forms of
Isonitrosocamphor (Stable and Unstable,), Camphor, Camphoric
Acid, Camphoric Anhydride, Camphorquinone and Sodium
Camphorate.

BAWA KARTAR SINGH, KAILASHPATI NARAYAN, PARA-
MESHWAR SlNHA SHEONATH PRASAD AND NUTBEHARI CHATTERJI

Dispersion of Depolarisation of Light-Scattering in Colloids. Part IV.
Iodine, Graphite, Stearic Acid, Vanadium Pentoxide, Arsenic
Trisulphide and Ferric Hydroxide Sols

R. S. KRISHNAN

A Property of Numbers .

F. C. AULUCK AND S. CHOWLA

On Some Infinite Series Involving Arithmetical Functions.

S. CHOWLA

On Some Infinite Series Involving Arithmetical Functions (II)

S. CHOWLA

A Generalization of the Sim-son Line

FAQIR CHAND AULUCK

On the Sufficiency of the Consistency-Equations .

B. R. SETH

Studies in the Substituted Quaternary Azonium Compounds. Part V.
The Molecular State of Phenyldimethylazonium, Phenylmethyl-
ethylazonium, Phenyldiethylazonium, Phenylmethylbenzyl-
azonium, Phenylpropylbenzylazonium Iodides in Dilute Solution.

BAWA KARTAR SINGH AND MELA BAM SUD

The Distribution of the Mean of Fisher's t2 for Samples from a Normal Population

P. Y. KRISHNA IYER

The Magnetic Susceptibility of Copper Amalgam

H.S.. YENKATARAMIAH

Chemistry of B-Aryl Glutaconic Acids. Part III. Condensations
with Phenolic Ethers (Continued) .

G. E. GOGTE

Heterocyclic Compounds. Part II. The Synthesis of Cyclopenteno-
(!' : 2" : 4 : 3)-carbostyril Derivatives.

S. ZAPARUDDIN AHMAD AND R. D. DESAI

Dispersion of Depolarisation of Light-Scattering in Colloids Part V.
Colloidal Dye-Stuffs .

R. S. KRISHNAN

The Use of the Median in Tests of Significance

S. B. SAVUR

Critical Opalescence of Liquid Mixtures .

R. S. KRISHNAN

The Fluorescence of Acetone Vapour

R. PADMANABHAN