“…In 1934 about 40 sheets were mapped (by K. Eichwald, J. Eplik, H. Aasamaa, S. Kaaber, E. Pastak (Varep), A. Riihl, E. Saarsoo, H. Salasoo, V. Sirgo, E. Kumari, A. Tamsalu, G. Vilbaste), one sheet covering about 100-150 km? (Lippmaa, 1936). Everything went according to the schedule and T. Lippmaa hoped to finish the mapping in 7-lo years.…”