EXPRESSION BY MEASUREMENTS. 



303 



TOTAL MEAN, MALE AND PEMALE. 



The illustrations selected in tte above tables from tbe very elaborate 

 series of measurements, of wliich the system has been detailed in pre- 

 vious pages, will suffice meanwhile to illustrate the character of. the 

 whole. Still further, the details previously furnished may serve as a 

 contribution towards the determination of the most reliable and useful 

 data for a comparative system of craniometry. If by means of a 

 uniform system we were enabled, through the independent labours of 

 competent observers in various parts of the world, to accumulate a 

 large amount of such minute measurements, in relation to the crania of 

 specific races, or of well-defined regions, so as to admit of a comparison 

 of results : we should, at least, ascertain thereby how far the mean 

 results in relation to each helped to exhibit any notable specialities. 

 By such means we might hope to eliminate from the whole certain 

 constants presenting a specific ethnical significance. We can scarcely 

 fail, at least, to determine thereby how far the expression of head- 

 forms, by means of measurements, tends to exhibit the specialities of 

 the individual skull, or to reveal the cranial characteristics of diverse 

 races of men. 



OX THE CHANGES OF BAROMETRIC PRESSURE, AND 



PRESSURE OF VAPOUR THAT ACCOMPANY DIFFERENT 



WINDS, AT TORONTO, 



FROM OBSERVATIONS IN THE SEVEN TEARS, 1860-66 INCLUSIVE. 



BY G. T. KINGSTON, M.A., 



DIRECTOR ^OF THE MAGNETIC OBSERTATORT, TOEOXTO. 



The object in the following paper is to shew the connection which 

 subsists between the direction of the wind and the rapidity of the 

 changes, whether of increase or diminution, which take place in the 

 pressure of air and of vapour. 



The changes considered in the investigation are limited to those in 

 which the direction of the wind did not vary between two consecutive 



