viii CONTENTS 



PAOE 



24. The Cattle Show . -55 



25. The Experimental Method . 59 



26. Hypnotism and an Experiment on the Influence or 



the Magnet . ... 60 



27. Luminous Owls and Other Luminous Animals and 



Plants . ... . . . .65 



28. Reminiscences of Lord Kelvin ... 68 



29. The So-called Jargon of Science . . .70 



30. Rats and the Plague . . . . - . 73 



31. Ancient Temples and Astronomy . 78 



32. Alchemists of To-day and Yesterday ... 84 



33. A Story of Sham Diamonds and Pearls . . 88 



34. The Nature of Pearls . . 89 



35. A King Who was a Zoologist . . . -93 



36. The Transmission to Offspring of Acquired Qualities 97 



37. Variation and Selection Among Living Things . 103 



38. The Movement, Growth, and Dwindling of Glaciers 108 



39. Votes for Women . . . . 1 1 7 



40. Tobacco and the History of Smoking . . .124 



41. Cruelty, Pain, and Knowledge . . . 131 



