Two textbooks of note: Sidgwick's Organic Chemistry of Nitrogen (1910) and Gould's Mechanism and Structure in Organic Chemistry (1959)

This whole paper deals with eclipses. The appearance of a book masks the existence of a prior masterpiece. Sometimes, the existence of a book prevents another from even being written. Physical organic chemistry has two such skeletons in its closet. The ghostly presence, Sidgwick's book, contributed to setting up our sub‐discipline. The appearance of Gould's useful textbook may well have prevented, this is the second contention, Paul D. Bartlett from writing his own treatise. Copyright © 2005 John Wiley & Sons, Ltd.