Arizona weekly enterprise., 1889-08-24
FACTS WORTH KNOWING.

It is stated in the report of the department of mines, New South Wales, that as many as 23,000 diamonds were found in the Inverell district.
 The preparatory works for the construction of canal through the isthmus of Perekop in the CriInea have been completed and the excavations will be commenced shortly.
 The work of photographing the stars of the Northern Hemisphere has been com menced at Mount Vincent with the Harvard thirteen inch photographic telescope
 Paper has long been made from wood pulp, but it is now manufactured from the saw dust refuse of mills. When tarred and dried it makes an admirable sheathing for houses.
 A workingnan in a foundry has patenteda method of casting pipes without sand molds In superheated steam or gas jacketed metal molds pipes are cast which are uniform, sound and true, as if turned or bored in a lathe.
 A single plate of perforated Zinc about a foot square suspended over gas jet is said to retain the noxious emanations from burn ing gas, which is known to destroy many articles in a room and to vitiate the atmos- phere.
 A French scientist has been producing ar tificial emeralds by fusing silica, alumina and glucina, with traces of oxide of chromi- um, with acid molybdate of lithia, at a tenn perature of from 600 degs to 700 degs. for | fifteen days.
 The great nitrate fields of Chili are about thirty miles inland from Iquinqui, and that city exports 16,700,000 quintals of this sub stance The export of nitrate brings in the handsome sum of $100, 900 per month to the custom house
 The total number of animals in the Zoolog- ical gardens, London, is stated in the annual report to be 2,290 The annual income of this society is over Sl00,000. They lost nearly 1000 animals last year, but the additions by purchase and gifts were 1,121.
 The native population of Benares, India, cannot have very advanced ideas as to the importance of sanitation, as 100000 of them have signed a monster petition to the govern ment protesting against the proposed new drainage and improved water supply.
 There has been considerable loss of grouse this year among the preserves of Yorkshire Moors, in England A land owner attributes the cause to the birds eating the withered tops of the heather in the early spring. These never ripened last year and the birds eating them have caused the epidemic.
 The English railways are using the electric light on their trains The Midland have the dynamo in the rear guards van, the driving gear being attached to the axle of the front pair of wheels. The light was found to bt quite steady and strong. During the stoppages the lights were kept steady by the accumula- tors.
 At recent exhibition of the phonograpl at Paris, NJ Gounod, the composer of Faust, said that if a tune was played and recorded on the cylinder it might be transposed into different keys by turning the cylinder faster or slower. It is stated that this fact was de monstrated by means of eornet played neal the photograph
 Application has been made for a patent fol an electric apparatus by which an instan taneous photograph is taken of Q burgla while he Is engaged in his nefarious opera tions. The moment he touches the door O the safe, or any other place to which the tel tale wire may be fastened, correct photo graph is taken.
 Mir. B. Piffard states in The Chemical New that a color apparently identical with Indial ink can be produced by the action of sulphu ric acid in camphor. After remaining twen , ty-four hours a gelatinous mass results of slightly reddish color. This when heated et , fervesces, giving off fumes of sulphuric acid and turns intensely black. An international congress of photograph will open in Paris on the 9th of August, th proceedings of which are likely to be of grea interest. Any one may attend and sugges subjects for discussion provided the sugge: tion is sent to the secretary, Mir. M s. Pectol No. g Rue Lincoln, Paris, at least fifteen day , before the opening of the congress.