1. Index Autorum

   Legacy 01 February 1971 Pages: ii - ii

2. Contents

   Legacy 01 February 1971 Pages: ii - iv

3. Pathology of Carp Blood Infested by Haemogregarina

   • L. I. Smirnova

   OriginalPaper 01 February 1971 Pages: 1 - 6

4. Ecological Studies in the Plankton of Certain freshwater Ponds of Hyderabad — India I. Physico-chemical Complexes

   • G. Seenayya

   OriginalPaper 01 February 1971 Pages: 7 - 31

5. The limnology of “Swetganga” — A thermal spring of Bakreswar, West Bengal, India

   • B. B. Jana
   • H. L. Sarkar

   OriginalPaper 01 February 1971 Pages: 33 - 47

6. Temperature-related occurrence of protozoa

   • S. M. Gittleson
   • T. Ferguson

   OriginalPaper 01 February 1971 Pages: 49 - 54

7. Ecological studies in the plankton of certain freshwater ponds of hyderabad — India II, phytoplankton —1

   • G. Seenayya

   OriginalPaper 01 February 1971 Pages: 55 - 88

8. Koagulation der Algen bei der Wasseraufbereitung

   • Libuše Švorcová

   OriginalPaper 01 February 1971 Pages: 89 - 137

9. An ecological study of the macrophytic vegetation of the Doodhadhari Lake, Raipur, M. P., India 1. Distribution and seasonal change in aquatic plants

   • K. Sankaran Unni

   OriginalPaper 01 February 1971 Pages: 139 - 155

10. Two new Gammaridean Amphipods (Crustacea) from the Gulf of Mannar, S. India

    • P. Rabindranath

    OriginalPaper 01 February 1971 Pages: 157 - 172