■()78 Transactions of the American Institute. 



OZONE. 



T. L. Soiet having found by the usual methods that ozone was 

 lifty per cent more dense than oxygen, afterward confirmed his 

 results oy the method of diffusion. The velocity with which 

 chlorine and ozone pass through the diaphragm of the diffusion 

 apparatus, is in inversed proportion to the square roots of their 

 respective densities, assuming that density of ozone is twenty-four. 



NEW EVAPORATING PROCESS. 



E. Parion, of France, claims by his method to bring the liquid to 

 be evaporated rapidly in connection with the heating surfaces. 

 When evaporation takes place at the ordinary temperatures, he 

 exposes tp the sun and wind the liquid in the finely divided state 

 of shower and spray. He prefers to use the waste heat of factories, 

 but this plan cannot be applied to chimneys without checking the 

 necessary draft. 



PHOTOPERIPATETIGRAPH. 



This long name, which would have puzzled the peripatetic phi- 

 losophers, is applied by Mr. Goebel, of iVIissouri, to his contrivance 

 to be used in out-door photography. It is a dark closet on two 

 wheels, which contains all the apparatus required by the photo- 

 grapher who wishes to make a picture of a parade, or the scene of 

 a boiler explosion or railway catastrophe. A full description of it 

 may be found in The Philadelphia Photographer for September. 



VOLCANIC ERUPTIONS IN THE ATLANTIC OCEAN. 



The attention of the French Academy of Sciences has been 

 called to the continued shocks of earth(juakes and volcanic erup- 

 tions which have occurred for some time past on the coast of 

 Portuiral, near Lisbon. The most violent action has been between 

 two small islands, Tesira and Graciosa. On the first of June last, 

 a submarine volcano forced igneous matter above the surface of the 

 ocean, and a tongue of land thus formed is now connected with 

 the continent. 



A NEW ANAESTHETIC. 



The quadrichloride of carbon (garod), a compound consisting of 

 one atom of carbon and four atoms of chlorine, and having the 

 a"-reeable odor of quinces, has been used lately in Europe. It 

 produces insensilnlity in less than one minute, which may be main- 

 tained without the loss of consciousness. Its use is not followed 

 by vomiting, and has been found of service in curing obstinate 



