xiv CONTENTS 



Appendix 3 2 9~338- 



Table of English and metric linear measure 329 



Tables for converting metric weights and measures to U. S. weights and measures. 330 

 Tables for converting U. S. weights and measures to metric weights and measures. 330 



Comparison of Fahrenheit with Centigrade thermometric scale 33* 



Comparison of Centigrade with Fahrenheit thermometric scale 332 



Some constants concerning air 33 a 



Expansion of air at different temperatures 333 



Density of oxygen at different temperatures 333 



Density of carbon dioxide at different temperatures 334 



Amounts of C0 2 and 2 absorbed by water at various temperatures 334 



Atmospheric pressure, as indicated by height of columns of water and mercury 334 



Density and volume of water at different temperatures 335 



Preparation of solutions of different concentrations 336 



Freezing mixtures 33*> 



Value of Fehling's solutions in sugars 337 



Proportional volumes of oxygen and nitrogen in various volumes of air 337 



Table showing osmotic values of some common reagents 33^ 



Index 339-35 2 - 



