WE have now before us Nos. 1 to 3 of the Journal of the Society of Glass Technology. The first of these has already been noticed in these columns (NATURE, July 26, 1917). The two additional numbers now available indicate the healthy progress of this new society, and augur well for the renewed vitality of the glass industry in this country. The papers which appear in this journal cover a wide range of subjects and vary very considerably in size and value; they may, perhaps, be regarded as somewhat minor contributions to a great subject, but that is as much as can be expected at a time when all our best energies are devoted to “doing” rather than to writing or talking about what has been and is being done. Thus, Sir Herbert Jackson's address, “Some General Observations on Glass,” is interesting and suggestive, but obviously deals only with some of the fringes of the great work on which its author is known to be engaged.