The Popular Science Monthly, 19. köideD. Appleton, 1881 |
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Page 871
... Increase and Movement of ...... 665 , 784 Post and Telegraph , Influence of the , on International Relations . Prairies , Why are , Treeless ? .. 101 424 Preece , W. H .... Publications Received . 378 127 , 274 , 421 , 564 , 710 , 859 ...
... Increase and Movement of ...... 665 , 784 Post and Telegraph , Influence of the , on International Relations . Prairies , Why are , Treeless ? .. 101 424 Preece , W. H .... Publications Received . 378 127 , 274 , 421 , 564 , 710 , 859 ...
Page 11
... increase their stock of creature - comforts and decrease their capacity for enjoying them ; religious and social dogmas pervert their natural instincts ; their children are crammed with metaphysics till they forget the physical laws of ...
... increase their stock of creature - comforts and decrease their capacity for enjoying them ; religious and social dogmas pervert their natural instincts ; their children are crammed with metaphysics till they forget the physical laws of ...
Page 17
... increase the weight by several pounds . Hook it to one of the middle notches , and try to move your arm as before . It will be hard work now to keep the stick horizontal ; even a strong man will find that the effort reacts powerfully on ...
... increase the weight by several pounds . Hook it to one of the middle notches , and try to move your arm as before . It will be hard work now to keep the stick horizontal ; even a strong man will find that the effort reacts powerfully on ...
Page 55
... increases steadily with the increasing demands which the schools make upon the eyes , and reaches the highest point in the gymnasia ; 2. The number of short - sighted scholars rises regularly from the lowest to the highest classes in ...
... increases steadily with the increasing demands which the schools make upon the eyes , and reaches the highest point in the gymnasia ; 2. The number of short - sighted scholars rises regularly from the lowest to the highest classes in ...
Page 56
... increase of near - sightedness . Dr. Gärtner , between 1861 and 1879 , examined six hundred and thirty- four ... increases from class to class , and becomes really formidable in the secunda and prima of the gymnasia and real schools ...
... increase of near - sightedness . Dr. Gärtner , between 1861 and 1879 , examined six hundred and thirty- four ... increases from class to class , and becomes really formidable in the secunda and prima of the gymnasia and real schools ...
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acid action American animal ants appears become blood body carbon carbonic acid carpel Catlinite cause cent chemical colored common copper disease effect electric existence experiments eyes fact feet fish flask force forest fumarole G. P. Putnam's Sons gases give glucose Government heat human hundred inches increase insects interest intermittent beam iodine known lampblack lapilli larvæ less light liquid living lower matter means ment method militant millimetre molecule mound-builders nations nature nest observed obtained organs origin pass persons physical plants practical present private international law produced Professor quantity race relations sacculina says scientific seeds Sir John Lubbock society sound species spectrum substance sulphuric acid surface temperature tion trace trees tube tumulus vapor vibrations Will-o'-the-Wisp