Lucas Andreas Tromp
Great Britain. Patent Office.
United States. Congress. Senate. Committee on Patents
David W. Blymyer
Manuel Moreno Fraginals
O. B. Stillman
A. J. Wallis-Tayler
Edward F. Dyer
Stade, George, Berlin.
Stade, George, Berlin
Russell M. Ramp
Unknown Author
A. B. Gilmore
United States. Bureau of the Census
Evgeniĭ Oskarovich Paton
Consiglio nazionale delle ricerche (Italy)
Franz Carl Achard
A. V. Bochkarev
E. M. Mervine