The Growth of Children. 



67 



to the new climate. Moreover, if it shall be found that the rate of 

 growth of the female sex is more seriously modified by emigration 

 than that of the male sex, light may be thrown on the question of 

 the cause of the alleged inferiority of the physique of American 

 women. As the value of observations of this sort depends entirely 

 upon their accuracy, it is important that the height should be meas- 

 ured without shoes, on rods graduated to one-tenth of an inch. The 

 weight should be determined on scales weighing pounds and ounces. 



Method of Investigation. 



In order to obtain the necessary data, blanks, with the fol- 

 lowing headings, were prepared and distributed to the various 

 schools : — 



Record of the Height and Weight of the Pupils in the 



School for , Boston, 187 . 



The principals of the schools were personally visited, the 

 nature of the inquiry explained to them, and their coopera- 

 tion in the work requested. It is to the friendly and intelli- 

 gent interest shown by these gentlemen that the success of 

 the work is in great measure to be attributed. The above- 

 mentioned blanks were filled out by the various teachers for 

 their respective classes, the weighing and measuring being 

 done under the personal superintendence of the principals 

 themselves, or, in a few instances, under that of a trustworthy 

 deputy. The heights, without shoes, were measured by means 

 of a rod graduated to tenths of an inch, and furnished with 

 a sliding horizontal bar and a clamp, by which it could be 

 fixed firmly to any table in a vertical position. The heights 



