Your remarks upon chemical notation with the variety of systems which have arisen, andc., andc., had almost stirred me up to regret publicly that such hindrances to the progress of science should exist. I cannot help thinking it a most unfortunate thing that men who as experimentalists and philosophers are the most fitted to advance the general cause of science and knowledge should by promulgation of their own theoretical views under the form of nomenclature, notation, or scale, actually retard its progress