636 



SCIENCE 



[Vol. LVI, No. 1457 



No. Score 

 Cases Medial 



15 and 13 years: 



Mixed Bloods 15 103 



Mesicans 145 85 



Piains & S. E 8 76 



Pueblo 46 64 



Navajo & Apache 12 52 



14 and 15 years: 



Mixed Bloeds 39 110 



Mexicans 132 92 



Plains & S. E 55 85 



Pueblo 82 80 



Navajo & Apache 19 60 



16 and 17 years: 



Mixed Bloods 41 104 



Mexicans 28 91 



Plains & S. E 60 90 



Pueblo 95 78 



Navajo & Apache 30 77 



18 and 19 years: 



Mixed Bloods 31 



Mexicans 2 



Plains & S. E 53 



Pueblo 26 



Navajo & Apache 24 



Univeksitt op Texas 

 July 8, 1922. 



Per cent. 



attaining Median 



of PI. & S.E. 



80 per cent. 

 60 per cent. 



40 per cent. 

 10 per cent. 



80 per cent. 



70 per cent. 



44 per cent. 

 20 per cent. 



71 per cent. 

 54 per cent. 



34 per cent. 

 23 per cent. 



114 60 per cent. 



71 30 per cent. 



77 40 per cent. 



T. R. Gaeth 



THE OPTICAL SOCIETY OF 

 AMERICA 



ABRIDGED MINUTES OF THE SEVENTH 

 ANNUAL MEETlNGi 



The seventh annual meeting of the Optical 

 Society of America was held at the National 

 Bureau of Standards, Washington, on October 

 25, 26, 27 and 28, President Troland pre- 

 siding. 



One hundred and thirteen persons registered 

 as in attendance at the meeting. Eighty-flve 

 of these were from outside Washington. The 

 actual number attending at one time or another 

 was probably about 150. The number in 

 attendance at any one time at the sessions for 

 the reading of papers ranged from about 

 thirty to over one hundred. 



1 The complete minutes including abstracts of 

 papers and descriptions of exhibits will appear in 

 the January number of the Journal of the Op- 

 tical Society of America. 



An exhibit of optical instruments was held 

 in connection with this meeting; and visitors 

 were also given an opportunity to inspect the 

 optical equipment of the Bureau of Standards. 



The condensed program follows: 

 October 25 

 Bureau of Standards laboratory exhibits open to 



informal visits. 

 Business meeting: 



Reports of officers and general committees. 



Reports of committees on nomenclature and 

 standards. 



October 26 

 Glass Plant open to informal visits. Pot of 



optical glass being stirred. 

 General session: 



Address of welcome: Dr. S. W. Stratton, direc- 

 tor, Bureau of Standards. 



Response: Dr. Leonard T. Troland, president, 

 Optical Society. 



Papers on miscellaneous optics. 

 Session on solar, stellar and planetary radiation: 



Invited papers by Dr. 0. G. Abbot and Dr. 

 W. W. Coblentz. 

 Glass Plant open to informal visits. 



Moulding, annealing and inspection of optical 

 glass. 

 Illustrated address (by invitation) : Professor 



W. J. Humphreys, U. S. Weather Bureau, on 



' ' The optics of the atmosphere. ' ' 

 Glass Plant open to visitors: 



Pot of optical glass removed from furnace. 

 October 27 

 First session on physiologic optics. 

 Second session on physiologic optics. 

 Special ■ session on physiologic optics for papers 



by invitation of the committee. 

 October 28 

 Session on photometry, colorimetry and optical 



pyrometry. 

 The exhibit of optical instruments, October 26, 



27 and 28. 



A synopsis of the proceedings, papers and 

 special features of the meeting is given below: 

 1. Business 



The report of the secretary and membership 

 committee was read in part. 



The president communicated an informal 

 report from the treasurer, the formal report to 

 be submitted at the end of (the fiscal year. 



The following reports of general conunittees 

 were received informally : 



Physiologic optics: F. K. Eiehtmycr, chairman. 



