PT  - JOURNAL ARTICLE
ED  - , 
TI  - SCIENTIFIC NOTES AND NEWS
AID  - 10.1126/science.52.1337.151
DP  - 1920 Aug 13
TA  - Science
PG  - 151--153
VI  - 52
IP  - 1337
4099  - http://science.sciencemag.org/content/52/1337/151.short
4100  - http://science.sciencemag.org/content/52/1337/151.full
SO  - Science1920 Aug 13; 52