Horton, P.G. The literature, The chemical literature,— When in doubt look it up in the literature. Every question man can raise, every phrase of every phase of that question is on record in the literature; Thrashed out threadbare pro and con In the literature. Did the universe at large once carry a positive charge? Why aren’t holes in macaroni square? From Avogadro’s number to the analysis of cucumber, if you’re interested you’ll ﬁnd it, for it’s there In the literature. In Journal this or zeitschrift that, Comptes rendus or Zentralblatt, In the literature.