132 Notes and Comment 



of Species, to which Huxley refers, are as follows: I. Varia- 

 tion under Domestication, II. Variation under Nature, III. The 

 Struggle for Existence, IV. Operation of Natural Selection, 

 IX. The Imperfection of the Geological Record, X. The 

 Geological Succession of Organic Beings, XI-XII. Geographical 

 Distribution, XIII. Classification, Morphology, Embryology, and 

 Rudimentary Organs. 



21, 23. Caveat. Liberally, " let him beware." The mean- 

 ing here is a note of 'warning or caution. 



21, 27. Onus probandi: "the burden of proof." 



22, 3. Natura non facit saltum: "Nature never makes a 

 leap." 



22, lo-n. Abuse and misrepresentation. Huxley had to 

 bear more of this than Darwin. At the famous Oxford Meeting 

 of 1860, Bishop Samuel Wilberforce turned to Huxley and asked, 

 " Is it through your grandfather or your grandmother that you 

 claim descent from a monkey?" Huxley's retort (as reported 

 by the historian, John Richard Green) was, " If there were an 

 ancestor whom I should feel shame in recalling it would rather 

 be a man a man of restless and versatile intellect who, not 

 content with an equivocal success in his own sphere of activity, 

 plunges into scientific questions with which he has no real ac- 

 quaintance, only to obscure them by an aimless rhetoric, and 

 distract the attention of his hearers from the real point at issue 

 by eloquent digressions and skilled appeals to religious preju- 

 dice." 



22, 22. " I think the more." This is the modern form of 

 an old proverb found in John Ray's Compleat Collection of 

 English Proverbs (1742): "Though he says nothing, he pays 

 it with thinking, like the Welshman's jackdaw." In his reply to 

 this letter (November 25, 1859) Darwin says: "I should have 

 been more than contented with one quarter of what you have 

 written." 



22, 24. John Tyndall. See note on line 19, page 13. 



22, 26. Messina: a seaport of Sicily, ranking next in com- 

 mercial importance to Palermo. 



22, 28. Bence Jones: Huxley's physician. 



22, 30. Ray Lankester: Edwin Ray Lankester, professor of 

 comparative anatomy at Oxford since 1890 and one of the 

 editors of The Scientific Memoirs of Huxley. See Descriptive 

 Bibliography, xxvii. 



