119.  What is a hypothesis?  Distinguish between a working hypothesis and an established hypothesis, so as to bring out the conditions on which the latter depends. [L]

120.  Explain how good scientific nomenclature and terminology are connected with the purposes of good classification. [L]

Printed in Great Britain by Hazell, Watson & Viney, Ld., London and Aylesbury for Simpkin, Marshall, Hamilton, Kent & Co.  Ltd.

[Transcriber’s Note: 

The following corrections were made to the original text: 

Page 40:  “inedequate” changed to “inadequate”
Page 42:  “classily” changed to “classify”
Page 90:  “alledging” changed to “alleging”
Page 128:  missing comma added:  “Camenes, Dimaris”
Page 141:  “evalued” changed to “evaluated”
Page 147:  “tellens” changed to “tollens”:  “and the Modus tollens”
Page 170:  “impredictable” changed to “unpredictable”
Page 210:  missing word ‘a’ added:  “Sesostris conquered a great”
Page 307:  “either” changed to “neither”
Page 315:  “inductions” changed to “induction”
Page 401:  “quality” changed to “quantity”
Page 401:  “propoedeutic” changed to “propaedeutic”]