Fig. 46 in A History Of Herpetology At The American Museum Of Natural History

Fig. 46. The ''new technique'' of night collecting. Top: Ruth Crosby Noble spotting a frog (Hyla versicolor) in Queens, Long Island (May 1922). Bottom: Ruth Crosby Noble and pal spotting Hyla andersonii on fence at Lakehurst, New Jersey (June 1922). The flashlight held by Mrs. Noble in the top photograph is similar to modern ones; her light in the bottom photograph is one of the acetylene (carbide) lamps favored by her husband, G. K. Noble, who was an early, enthusiastic practitioner of night studies. Both kinds of lights were rapidly developed in the early years of the 20th century and were widely available by 1920. AMNH Photographic Archives 244585, 244526.