The A,B,C's of the AWLN (Advanced Wiswesser Line Notation) *

Loschrnidt J. , Chemische Studien (Vienna, 1861). (This lost landmark became an Ostwald Classic as soon as Richard Anschutz rediscovered it in 1912.)

Berzelius J.J. , On the elemental signs, and the method of employing them to express chemical proportions. Ann. Philosophy 3 (1814) 51-52. Leicester and Klickstein s Source Book in Chemistry (Harvard University Press, Cambridge. MA, 1952) has an extract of this landmark paper in pp. 262-264.

Wiswssser W.J. , A. Line-Formula Chemical Notation (Thomas Y. Crowlll, New York, 1954); [3a] p. 3; [3b] p. vii; [3c] p. 33; [3d] p. 127; [3e] p. 128; [3f] p. 8; [3g] p. 121.

Smith E.G. , The Wiswesser Line-Formula Chemical Notation (McGraw-Hill, New York, 1968).

Smith E.G. , and Baker P.A. , ibid., 3rd edition (CIMI, Cherry Hill, NJ, 1975).

WYLBUR Reference Manual (Management Information Systems Directorate, US Army, Fort Detrick, MD, 1979). “WYLBUR is a computer program which functions as a text editor and remote job entry facility. It was developed by the Stanford University Computation Center and adapted for use at the National Institutes of Health (NIH) Central Computer Facility”.

Cooke J.P. , Textbook of Chemistry (Harvard College, 1881).

Frear D.E.H. , and Seiferle E.J. , Chemical structure and insecticidal efficiency, J. Econ. Entomology 40 (1947) 736-741.

Zipf G.K. , Human Behavior and the Principle of Least Effort (Addison-Wesley, Cambridge, MA, 1949), p. 25. (Information scientists know “Zipf's Law” as the precise hyperbolic word rank-frequency relation.)

Eldndge R.C. , Six Thousand Common English Words (Clement Press, Buffalo, 1911).

In 1932 I thought I had discovered an equation for all such solutions, like 5, 12, 13, 7. 24, 25: 9, 40, 41: but perceptive Pythagoras even had that equation!

Dyson G.M. , A New Notation and Enumeration System for Organic Compounds (Longmans and Green, London, 1947).

The World Almanac. 1981 (Newspaper Enterprise Assn., New York. 1981) pp. 201, 430, 794-796.

Cannizzaro S. , Sketch of a course of chemical philosophy, Alembic Club reprint no. 18 (Edinburgh, 1910); another classic reprinted in Lancaster and Klickstein's Source Book, pp. 406-417 [see ref. 2].

The Parent Compound Handbook, with updating issues, (Chemical Abstracts Service, Columbus, OH 1976-82).

Ash J. , and Hyde E. , eds., Chemical Information Systems (Ellis Horwood Ltd., Chichester. England, 1975).

Wiswesser W.J. , How the WLN began in 1949 and how it might be in 1999, J. Chem. Inform. Comput. Sci. (in press). (Introduction to WLN Symposium, with 50 references.)

Submitted before [16] was reviewed.

My 12-year-old granddaughter Tara is preparing to inject this color coding in an APPLE diskette on “Properties of the Elements”. (Note added in proof.)