The Bridgeport evening farmer., 1909-06-09
NEWEST NOTES OF SCIENCE

S1anQDaD3T can De kept ITOIn slip ping under the hand by chalking the back
 Georgia's coal production last year of 264. .s22 short tons was the lowest since 1899.
 Experiments with filling balloons with superheated steam are to be tried in Germany.
 The coffee tree begins to bear at three years and reaches it's fullest bearing at ten years
 The health record of the German army is better than that of any other nations fighting force.
 After every eruption of Vesuvlus the crater is covered with a gleamlng white layer of common salt.
 STeather forecasts by wireless teie- graph are furnished vessels in the AL lantic by the British bureau.
 White pine water tanks have been known to last 20 years. while some built of cypress have lasted 25 years.
 A combined metal cover and handle which locks securely upon milk pot ties has been invented by a Massachu-
 A New Jersey resident has patented a pie and cake box which is ventilat- cd, to prevent the contents from De- coming Soggy.
 Several German shipyards are equip ped with electro-magnets powerful enough to lift dead weights of 5O,ooo pounds. 7
  of Rome was founded, recently was undiscovered.
 S Of the public lands still owned by the Federal Government 1t IS eso- mated that S0,00os00O acres are under laid with coal.
 The known petroleum areas of the TInited States include 8,s50 square miles, and the natural gas areas 1O,-
 When completed the new White Star liners will be the largest vessels af1oat being 890 feet long over all by sz feet beam
 roads are divided into first and sec ond class compartments, with the kitchens in the center. .,,
 A class in wireless telegraphy will he established by the Ohio State Uni versity in connection with it's eng1n- eering department
 A s0o-year-old church clock in Eng land, recently restored to service af- ter 30 years silence, uses cannon balls for weights.
 Italian contractors and engineers are planning to link Egypt and syria by a railroad that will be the first to cross the Suez Canal.
 An investigation of the boy worh- CTS of London revealed that the news boys were the most healthy and those employed by the bakers the least so. :
 California,s petroleum output mas been steadily increasing for several years, in 1908 reaching the record hg- rre of A, ,861, ,742 barrels.
 A novel potato digger invented by an Indiana man loads the tubers by an endless chain into the wagon 10 which the machine is attached.
 Reinforced concrete boats have pro ven so successful In, Italy that five vessels. each of 12o tons or larger, have been built for the navy
 Electricity has replaced mules as the motive power on the street rail- ways of Santos. the Brazilian city from which so much coffee is export ed
 Screws rusted into metal may be loosened by holding on their heads red hot irons to expand them- After cool ing they can be turned out easily
 Louisiana produces two-thirds Of the worlds supply of sulphur. much of it being melted by steam 500 feet under ground and pumped to the surface
 The use of chlorine in the propor- ton of five parts to one million, ac. cording to the Geological Survey. will practically disinfect ordinary sewage.
 Lead pipes may be polished by rub hing them with pulverized pumlce on wet rag until bright, then drying them and applying a coat of white varnish.
 The examination of over 400 flies at the Connecticut Agricultural Expert rnent Station showed that they car ried an average of 1,250O00 bacteria apiece.
 A horse census, of England, conduct ed by the Government, revealed that, while the number was not decreasing there was an alarming lack or anil mais Of suitable types
 Prizes will be offered at the coming German aeronautical exposition for metal lighter than aluminium, but re- halls of various types.
 The two battleships authorized by the last Congress, which will be iafd down next fall, will carry heavier bat rxav av1x nft r-u or ordered by any nation.
 To measure the amount of air adN mitted through cracks in buildings a novel instrument has been devised, shaped like a funnel and carrying a small anemometer in its nozzle.
 While the. forests of the United States are Increasing at the rate of 1000, oo,oOo cubic feet a year. the country is using %. .000, COG, 900 cubic feet of wood each twelve months
 The recent development of bitum- fnous mines in Monterey county, is expected to rehabilitate the coal indus try of California, which has been steadily declining for several years.
 A new $500, 900 steam vessel built in England for use between Prince Ed ward Island and the mainland is with drift ice fields Is feet thick
 By the addition of Venetian soap and gum lac alcohol has been made ins- to briquettes, which are enclosed in H. they may be used as spirit lamps.
 Ten graduates of the Harvard Med- ical School are planning to establish in China a thoroughly equipped insti- tuition to teach medicine along mod erns lines, something that the nation lacks
 A Philadelphian has invented knives, forks and spoons so modelled as to teach a. child to handle such utensils, correctly. They can be held x comfortably in the right position.
 Horsepower estimated at 120,000 will be developed from an electrical plant to be built at Grand Falls on the St. s Johns river in New Brunswick, where there is 135-foot fall of water.
 Unable to buy an airship from Ger many during the recent crisis, the Austrian Government has encouraged the Organization of a company at home to build them and will be its first customer.
 A new burglar alarm, the invention