Prof. A. E. Conrady

Abstract

I AM indebted to Mr. Cyril Young, of Sir Howard Grubb, Parsons and Co., Ltd., for directing my attention to a mis-statement in my obituary notice of the late Prof. Conrady¹. I had been informed from a source which I believed trustworthy that, prior to the War of 1914–18, the periscopes fitted to British submarines had been obtained from foreign sources. Mr. Young, supported by other correspondents, assures me that almost all the periscopes of this period were made by the firm of Sir Howard Grubb and Sons, Ltd., in Dublin; and this firm produced the majority of the periscopes used during the War. Even before 1914, periscopes were the main product of the firm, though it was probably better known in scientific circles for its astronomical telescopes. Sir Howard Grubb took out a number of patents in connexion with submarine periscopes from the year 1901 onwards. The firm's workshops were removed from Dublin to St. Albans when the enemy submarine menace became acute.