Group photograph on the occasion of Professor Chester A. Arnold (Paleobotanist, USA) and Basil E. Balme (Palynologist, Australia) visiting Palynology Laboratory of the Oil & Natural Gas Commission, Dehradun, India, in 1959.

Sitting L to R: Amiya K. Ghosh, Chester A. Arnold, M. C. Poddar, Basil E. Balme, Chandra P. Varma.
Standing L to R: Debashish Banerji, Satish K. Srivastava, Jayanti Sen, Kamal Malhotra, Anne Thomas, Ashok K. Dangwal.
Back row: Laboratory Attendant (name unknown).