Progress in Science

A Polish chemist has discovered that liquid oxygen is not colorless. In a layer of it thirty milimeters thick he finds it has a bright sky-blue color.

Electrician Nikola Tesla says that the time is not far distant when a vessel at sea will be able to telegraph to either shore without any direct connection.

A perculiar mineral has been found In Montana. When taken from the ground it has much the appearance of iron ore, but upon being exposed to the air it takes fire and consumes itself.

A new parasite has been discovered which infects paper money and is fouud nowhere else. It is invisible to the unassisted eye, does not attach itself to persons but multiplies at a rapid rate.

It now requires but thirteen pounds of water converted into steam with a pressure of 175 to 200 pounds in the boiler to secure one-horse power with a triple expansion engine. By the use of one-third more coal the pressure in the boiler and the horse-power can be doubled. — N. Y. Times.