. Julia Ward Howe contributed a paper current volume), and in the Supplement (No. 246), only a on " The Changes in American Society;" and Frederick sions come from the carelessness of miners, who will not brief reference to the fundamental principles of the inven- hesitate to open a safety-lamp… … large towns of Europe as with us,.and the The selenium forms a part of an elec- area has been larger there. What has trical circuit, which includes the battery, P, BELL'S PHOTOPHONE. been secured for London alone is of and receiving telephone, G. A sound made greater extent than all the town parks…
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