Index on pages

Pages 333 and 346. The name that is indexed on page 346 as van Ekenstein, W. A. should be indexed as Alberda van Ekenstein, W. and inserted on page 333. 

Just how many phenethylamines are there This is an ambiguous and unanswerable question. The more relevant question is how many psychedelic phenethylamines are there This is still not known, but the question that we can address, is how many potentially active phenethylamines are known, and what is their status The index on pages 453-457 lists 179 phenethylamines. However, study of the 179 "recipes" reveals that many of them describe more than one compound. Generally, under a single recipe, data will be presented on closely related materials. A list was made of all phenethylamines discussed in Book II, for which there was presented at least either the synthesis, or data on activity in humans, or a separate recipe (Table 1, at the end of this document). This exercise turned up 311 compounds. 

Examples of the protection of carboxylic acids, alcohols, phenols, aldehydes, amines, and ketones are also indexed on page xi. 

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