We regret to announce the death of Mr. Paul A. Sabbaton, which took place at Albany on the evening of Nov. 1st. Mr. Sabbaton was a distinguished gas engineer and inventor, and resided formerly in New York. He was an esteemed client, and at the time a frequent contributor to the SCIENTIFIC AMERI-CAN. He had reached the advanced age of eighty one years. We also regret to announce the death of Mr. Otis Tufts, of Boston, an inventor of considerable note. He was the builder of the iron steamer, R. B. Forbes, and one of the improvers of the steam engine. He invented a pow&' and a hand printing press, the latter of which is still, in use; and he was the inventor of an excellent elevator for hotels, stores, etc., which has been extensively used both in America and Europe.