Artificial Production of Rubies
Chlorosulphurets of Lead, Copper, Bismuth, and Zinc
Conservation of Living Plants during long Voyages
Correction in the Rev. N. S. Heineken`s Paper on the Shock-Multiplier
Gaseous Diffusion
Modified Polygalic Acid
Polygalic Acid
Shooting Stars
Heineken, N. S.
559 - 567