PAPERSPAST

THE HUMAN EYE.

That the human .eye .and tho • ph'olo-. graphic lens uro very much alika in d'i?i;,'h and operation is n well-known fact. If you look through a. photographic l«ns you will sl'o nothing clearly. To perceive tho image, Kays the October isuo of "Popular Science Monthly," a piece of β-round glnra or a plate of film is necessary. Api ato is a piece of plain glass which act 3as a support for an emulsion. This emulsion decomposes when /-luuck by light, and the decomposition is made visible by a process called development. With, an ordinary photopraphie plate only oue such impression or image, can be obtained. With tho motion picture film, however, a fresh pieco of film is continually exposed to the lens - . Just such an arrangement exists in the human eye. An omulsion called visual .purple acts as ; film of great latitude, renew in , / itself ns soon as it is struck by Hie iiylit and discoloured. It adapts iKvif to various intensities of light, prottcling 'the retina from too brilliant tv tflare at all time*.

The French anarchist, Leeoin, has again been arrested. A short time.ago ho e«rred a sentenco of one- year for publicly distributing pacifist tracts. Lccoin made known to the authorities that ho would not join tlio colours on liberation, as his convictions would not allow him to participate directly or indirectly in war. The re-suit of this was his arrest. In 1910. L«eoin was condemned to sis months' imprisonment for refusing , to obey military orders wuring tho railway strike, and in 1915 he was condemned to live jtnxvs for anti-militarist propaganda.

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