National Geographic : 1970 Jul
EKTACHROMES (C) NATIONALGEOGRAPHIC SOCIETY Like a switchman swinging a lantern, a railroad worm sways its head in this time exposure. Below, another travels at 3/4 of an inch a second. For the larger picture, Mr. Sisson first took an insect-illuminated time exposure that makes trailing lights resemble peas shucked from a pod. He then rephoto 66 graphed his subject on the same frame in artificial light.