Aluminum.—A new process of extracting this metal has been discovered, it is claimed, by which the metal can be produced for a few cents a pound. Prof. Joseph M. Hirsh, Chicago, Ills., is the one whom it is claimed has solved the problem of extracting the metal from an aqueous solution.
Societies.
OHIO STATE DENTAL SOCIETY.
The Ohio State Dental Society held its sixth annual session in the Senate Chamber, Columbus, O., Oct. 28th, 29th and 30th, 1890, and was opened with prayer by Dr. Gladden.
Dr. W. H. Sedgwick, of Granville, O., delivered an address.
Fifty years ago the extraction of teeth was largely practiced. A man's ability was gauged by his mechanical skill. Since then there has been quite a change which has been wrought by the agency of intercourse, societies and literature. He compared the cheap dentist to the physician who would advertise, best prescription, fifty cents; medium quality, fifteen cents; a lawyer who had best opinions, $9.00; poor ones, 5.00; or a minister who delivers his sermons in job-lot style and attends Sunday-school in the bargain.
Dental students should spend two or more years in office pupilage before entering college and they should not be received at all unless they agree to spend their time and attend the required college course before practicing. The college should reciprocate and not accept a student who has not had this previous pupilage.