LONDON Chemical Society, May 1.—Dr. Odling, F.R.S., president, the chair.—Dr. H. Sprengel, “On a new class of explosives,” gave an account of some new explosives consisting of two liquids ...

AMONG the many men of science of German birth who during last century made England their home was Herman Johann Philipp Sprengel, F.R.S., the centenary of whose birth occurs on August 29. Born at ...