sentences:  He decided to employ a candlejar instead of the CO2 incubator.In the summer of 1976 Milton Friedman, a graduate student in the Trager lab who was working in the MRC laboratories in The Gambia, arranged for a sample of human blood infected with "P. falciparum" to be sent to New York City.This was diluted with RPMI 1640 (which turned out to be the best of the commercial media) in Petri dishes, placed in a candlejar and incubated.