20 CONTENTS* 



Observation with Thought - * *63 



Origin of Discoveries ---.....64 

 Duration of Nature's Charms - ... 67 



The "Act of Life" .... - - - 69 



SECTION III. 



THE SENSES. 



Tasting and Smelling --.-...70 

 Senses of Animals ---.....71 



The dying Monarch .... ...74 



Senses which can be cultivated ...... 74. 



Education of the Hand 75 



Extreme Fineness of muscular Feeling . - - 76 



Limit of the Power of the Hand 77 



Hearing 78 



Sound uncertain Information 78 



Sound, Weakness '. . -80 



The Act of the Mind superior to Invention - * 81 



Pleasure of Hearing --......82 



Relation of Hearing and Touch ---.-. 83 

 Qualities of the Ear ........ 83 



Sensation really mental --.*. -84 



Sight . 86 



A Painter's Eye ..87 



SECTION IV. 



PRECAUTIONS IN OBSERVING. 



We must not be misled by Size and Weight * -89 



Motion is the Test of A ction 90 



Motion of heated Water Its Effects 90 



Small Beginnings not to be despised . - 91 



Acorns and Oaks 92 



James Watt's Monument - - - . . . . 95 

 Salt and Salt-making - ..... 96 



Succession of Events ---.....97 



Losing one's Way 99 



The beaten Track . -100 



Engineer Horses ---.... 103 

 Effect of the Centre of Gravity **. 103 

 How to walk on Slopes ---.. 104 

 All Things are useful ---.*... 105 



There is Information in every Place 108 



Weight and Magnitude 110 



