Apprivoiser les plans de porte vues perspectives et feuilles de détails constructifs' relatives à l'architecture moderne. Chaque numéro est illustré avec de belles assiettes montrant les bâtiments publics et logements souhaitables archi tectural travaillent dans une grande variété. Pour les constructeurs et l'ensemble des publieution qui envisagent de construire dans le monde. Édition espagnole de l'Américain scientifique. abondamment illustré. C'est le trnest commerce industriel scientifique papier imprimé dans la langue espagnole. Il circule partout dans les Antilles Cuba Mexique Amérique Centrale et du sud de l'Espagne et l'espagnol possède sions-là où l'espagnol
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taming door plans perspective views and sheets of constructive details' pertaining to modern architecture. Each number is illustrated with beautiful plates showing desirable dwellings public buildings and archi tectural work in great variety. To builders and all who contemplate build tural publieution in the world. Spanish Edition of the Scientific American. profusely illustrated. It is the trnest scientific industrial trade paper printed in the Spanish language. It circulates throughout Cuba the West Indies Mexic Central and South America Spain and Spanish posses sions—wherever the Spanish language is spoken. $3.00 a year post paid to any part of the world. Single copies 2.5 cents. See prospectus. MUNN Br CO. Publishers 361 Broadway New York. NEW YORK SATURDAY JANUARY 24 1891. Contents. (Illustrated articles are marked with an asterisk.) TABLE OF CONTENTS OF SCIENTIFIC AMERICAN SUPPLEMENT For the %Week Ending January 24 1891. Price 10 cents. For sale by all newsdealers PAGE I. AGRICULTUREOur Twenty ' Best ' ApplesA list of apples By FINKENERAccurate determination of the melting point of fats in the laboratory.-1 illustration 12560 The Changes of Property of Amalgams by Repeated Fusion. - By Dr. G. GORE F.R.SAn interesting investigation applying illustration III. CIVIL ENG1NEECRINGThe Tegel Water WorksDescription of Berlin.-6 illustrations 12551 Transmission of Power by Flexible Wire Rope or CableBy J. mission of power.-2 illustrations 12554 IV. ELECTRICtT YNew Electrical BoatA boat driven by a pri sults.-2 illustrations Tele-PhotographyBy HENRY SUTTONAnother attempt to The ElectromagnetBy Prof. SILYANUS P. THOMPSONCon tinuation of Prof. Thompson's series of lectures with exhaustive lustration V. ENTOMOLOGYThe Outlook for Applied EntomologyCon tinuation of Prof. Riley's address treating of insecticide means and processes and bee and silk culture VI. MECHANICAL ENGINEERINGFriction of Journal Bearings. —A review of the action of lubricants in preventing friction
