SCIENCE FROM AN EASY 

 CHAIR 



SCIENCE AND PRACTICE 



THE delight which is experienced by those who 

 discover new things in the various branches of 

 science is, no doubt, very great. To reveal to other 

 men processes, properties, existences in the natural world 

 hitherto unsuspected, or, if suspected, yet eluding the 

 grasp of man, is to do something which gives to him 

 who does it a sense that he is of value in the world 

 a sense which will uphold him and enable him to endure 

 adversity, and even persecution, with equanimity. But 

 there is, perhaps, a greater and more vivid satisfaction for 

 those who do or make great and splendid things which 

 all men can see, and for which all men are grateful. The 

 great artist poet, painter, builder, or musician has this 

 satisfaction, and so also has the man who, by a combina- 

 tion of personal energy and clearness of intellectual vision, 

 applies scientific knowledge to the accomplishment of 

 great public works, and to the acquirement of that control 

 by mankind of the natural conditions hostile to human 

 progress which we may call, as did Lord Bacon, "the 

 establishing of the kingdom of man." 



The men who have expelled yellow fever from Cuba 



