The Bridgeport evening farmer., 1909-01-13
NEWEST NOTES
 OF SCIENCE

The British navy includes 26 armored ships exceeding 23 knots in speed, III addition to 16 unarmored ones. Three of the former are rated at better than 24 knots, and three of the latter al l % knots.
 A stope drill of American manufac- ture recently won the prize offered by l the Johannesburg Chamber. of Mines l for the best all-round invention for use in mining. It is said to save the labor of four men. The blue paper upon which masic- ians'' write in white with steel pen dipped in water is prepared by rubbing it with finely powdered persulphate of iron and ferrocyanfde of potassium. A peculiarity of the devil fish is that it does not lay thousands or millions | of eggs at a ~tiIne but normally pro- duces a single young one at birth and nourishes 1t in the fashion or mammals.
 In the interest of economy a new six-cylinder gas engine is so construct ed that two, four or six cylinders are automatically thrown into service or discontinued as the load increases or diminishes.
 A long series of experiments has demonstrated that the air of cities Is more humid than that of surrounding suburbs, despite the fact that the heat of the former would be supposed to dry the atmosphere.
 At the home of Torricelli, the inven- tor of the barometer, in Italy, novel monument has been erected in the form of a huge barometer in which col umn of olive oil normally stands at a height of 37 feet.
 A clock may be thoroughly cleaned without taking apart by laying on it's floor piece of cotton saturated with kerosene, the fumes of which within three or four days will loosen the dust and lubricate the bearings.
 An egg beater which can also be used as an ice cream freezer and a churn has been patented. To the lower end of the dasher is attached a perforated tin cone, through the holes of which the matter to be beaten is forced.
 A permanent national exposition at Madrid, for the promotion of which an organization has been formed in Spain, will have for one of it's chief objects the stimulation of scientific methods in agriculture and manufacturing.
 On the basis of a bushel of corn pro- ducing 2.5 gallons of alcohol, it has been figured out that last years corn crop in the United States was suffi- cient to furnish 200Oo,0O0 horsepower for ten hours day for an entire year.
 Louisiana IS eSJlfndCe0 to waste l0,- 900, 900 cubic feet of natural gas daily, more than one-twentieth of that con- sumed in the United States( and the Secretary of the Interior has with drawn from entry $500 acres of nat ura1 gas fields.
 A new stop watch has been brought out for the use of physicians and nurses in counting pulse beats. The pressure of a button starts it and an other pressure stops it and marks the time when a given number of beats have been counted.
 The largest single filtration plant in the world is said to be the one recently completed for Pittsburg. The sedi- mentation basins have a capacity of 120, ,0O00 GOO gallons, and the filtered wa ter reservoir room for 500O0.000 gal Ions.
 According to pr. Koch, the famous German savant, the crocodile will have to be exterminated from Africa before the sleeping sickness can be conquered, as the disease is. spread by a species of the tsetse fly, which is a parasite of the saurian.
 Leather may be dyed brown with a solution of five ounces of fustic, one of hypernic and half an ounce of log wood, all extracts, to 12 gallons of wa ter, with mordant composed of three ounces of white tartar and four of alum in ten gallons of water.