Broken glass tube demonstrating that potassium nitrate and water (in unknown quantities) liquifies at an unknown temperature

1885

Glass tube demonstrating that 79.14% potassium nitrate and 20.86% water liquifies at 123 degrees Celsius

1885

Glass tube demonstrating that 98.86% potassium nitrate and 1.14% water liquifies at 300 degrees Celsius

1885

Glass tube demonstrating that potassium nitrate and water (in unknown quantities) liquifies at 114 degrees Celsius

1885

Glass tube demonstrating that 95.11% potassium nitrate and 4.89% water liquifies at 262 degrees Celsius

1885

Glass tube demonstrating that 89.94% potassium nitrate and 10.06% water liquifies at 201 degrees Celsius

1885

Glass tube demonstrating that potassium nitrate and water (in unknown quantities) liquifies at 151 degrees Celsius

1885

Seven glass tubes showing continuity between aqueous solution and igneous fusion in the case of saltpetre

1885