THE PHILOSOPHICAL TRANSACTIONS AND
SCIENTIFIC JOURNALS OF ALL NATIONS.
PROCEEDINGS OF LEARNED SOCIETIES,
NOTICES OF ALL PATENTS GRANTED FOR INVENTIONS.
VOLUME XII.-SECOND SERIES.
PRINTED FOR THE PROPRIETORS;
AND SOLD BY W. H. WYATT, AT THE
REPERTORY AND PATENT OFFICE, 9, PICKETT-STREET,
TEMPLE-BAR.