We Apologise

• To T.S., author of the report of Prof Slater's address to the Chem. Soc on Russia, for permitting the figure of £600 to appear instead of £6000 as the income of a Russian scientist.
• For the omission of the word "invariably" from between the words "almost" and "totalitarian" in Dr. Soper's article, which altered the the meaning of one sentence considerably.
• For the misprints, misproofs, and [unclear: mis-slips] mentioned by various correspondents in our "Dear Salient" column. We are doing our damndest to eliminate these entirely in the future.