METRIC MEASUREMENTS AND THEIR 

 ENGLISH EQUIVALENTS. 



The metric system adopted in this bulletin, as iu 

 No. 7, is now quite generally employed in botanical and 

 other scientific publications. For those unfamiliar with 

 this system the following expression of equivalents may 

 be useful : 



1 millimt'tre (1 mm.) = one twenty-fifth of an inch exactly 

 0.0394 inch. 



1 centimetre (1 cm.) = nearly one-half of an inch; 10cm.=about 

 4 inches. 



1 decimetre (1 dm. ) = about 4 inches, or 3 dm. = 1 foot. 



1 metre (1 m.) =about 3 feet 3f inches exactly 39.37079 inches. 

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