PT  - JOURNAL ARTICLE
ED  - , 
TI  - AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE
AID  - 10.1126/science.ns-4.84.229
DP  - 1884 Sep 12
TA  - Science
PG  - 229--248
VI  - ns-4
IP  - 84
4099  - http://science.sciencemag.org/content/ns-4/84/229.short
4100  - http://science.sciencemag.org/content/ns-4/84/229.full
SO  - Science1884 Sep 12; ns-4