1. Colour in relation to chemical constitution of the organic and inorganic salts ofisonitroso-diphenyl-thiobarbituric acid and its higher homologues and analogues

   • Ione Nitravati Dharam Dass
   • Sikhibhushan Dutt

   OriginalPaper Pages: 145 - 159

2. A theorem in the additive theory of numbers

   • Inder Chowla

   OriginalPaper Pages: 160 - 164

3. Quasi-boolean algebras and many-valued logics

   • R. Vaidyanathaswamy

   OriginalPaper Pages: 165 - 170

4. Coefficient of viscosity of air

   • V. D. Majumdar
   • M. B. Vajifdar

   OriginalPaper Pages: 171 - 178

5. Studies in turbine geometry—II. On the sub-geometries of lie which belong to the Mobius-Laguerre pencil

   • A. Narasinga Rao

   OriginalPaper Pages: 179 - 186