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E XVIII.- Appareil Plioto-Elcctriqiie Saulter UarK- (lî amp^rei) (p.i60).

Planche XIX. - Projecleui- Saullpi- Hurlé (lî ampères) (p. Wl).

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1 XXII, - Proj.eli;ur SaAIet- IbilO sui- son pied lij ampùres) (p. 40tJ>

A FINE IS INCURRED IF THIS BCX)K IS NOT RETURNED TO THE UBRARY ON OR BEFORE THE LAST DATE STAMPED BEL^.

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