271-272] ATOMIC WEIGHTS OF ELEMENTS 



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271.— List of Chemical Elements, with their Symbols 

 and Atomic Weights 



The words in brackets are the Latin names of the elements from 

 which the symbols have been derived. 



272.— Thermometric Scales 



There are two different thermometric scales in use in this country, 

 the Centigrade and Fahrenheit ; the former of these is rapidly becom- 

 ing universal for scientific purposes. The two scales are mutually 

 convertible by the following formake, in which F.° represents a tem- 

 perature on the Fahrenheit scale, C.° a temperature on the Centigrade 

 scale : — 



I (F.° - 32) = C.° 



I C.° + 32 - F.° 



The temperatures occasionally referred to in this book are given on 

 the Centigrade scale. 



G3 



