1. Printed in Harvard Magazine, 1983, March/April, p. 104. Roy L. Sharpe (ca., 1880–1939) was a salesman for a wholesale drug firm, and he may have written only this one poem. Sharpe's own title was “A Bag of Tools.” We thank his nephew, William L. Davenport, for information in correspondence, June, 1986.
2. The World Book Encyclopedia, (Field Enterprises Educational Corp., Chicago, 1966), vol. 13, p. 11.
3. Catalysis of symmetry-restricted reactions by transition metal compounds. Valence isomerization of cubane
4. Statistische Synthesen von Rotaxanen
5. Schill, G., private communication, August, 1977.