8 



ESSENTIALS OF CHEMICAL PHYSIOLOGY 



scale has almost completely taken the place of these ; in this system the 

 freezing-point is and the boiling-point 100. 



To convert degrees Fahrenheit into degrees Centigrade, subtract 32 and 

 multiply by $ , or C = (F 32) f . Conversely, degrees Centigrade may be 

 converted into degrees Fahrenheit by the following formula : F = C + 32. 



TENSION OF AQUEOUS VAPOUE IN MILLIMETRES OF 

 MERCURY FROM 10 TO 25 C. 



10. 9-126 

 11. 9-751 

 12. 10-421 

 13. 11-130 



14. 11-882 



15. 12-677 



16. 13-519 



17 3 . 14-409 



16. 15-351 



19. 16-345 



20. 17-396 



21. 18-505 



22. 19-675 

 23. 20-909 

 24. 22-211 

 25. 23-582 



TABLE OF THE DENSITY OF WATER AT TEMPERATURES 

 BETWEEN AND 30 C. 



0. 0-99988 

 1. 0-99993 

 2. 0-99997 

 3. 0-99999 

 4. 1-00000 

 5. 0-99999 

 6. 0-99997 

 7. 0-99994 



8- 0-99988 

 9. 0-99982 

 10. 0-99974 

 11. 0-99965 

 12. 0-99955 

 13. 0-99942 

 14. 0-99930 

 15. 0-99915 



16. 0-99900 

 17. 0-99884 

 18. 0-99866 

 19. 0-99847 

 20. 0-99827 

 21. 0-99806 

 22. 0-99785 

 23. 0-99762 



24. 0-99738 

 25. 0-99714 

 26. 0-99689 

 27 \ 0-99662 

 28. 0-99635 

 29. 0-99607 

 30. 0-99579 



SYMBOLS AND ATOMIC WEIGHTS OF THE PRINCIPAL 

 ELEMENTS 1 



1 The above atomic weights are taken on the basis that = 16; that of 

 hydrogen will then be 1-008. 



