31. Johnson carried out field research among the Chinantec and Pima and Opata in Sonora. 32. Field research also may be conducted to confirm circulation figures.33. She did field research in Liberia, West Africa, in 1960-61. 34. Earthwatch, which recruits paying volunteers to aid scientific field research , offers some dinosaur-related possibilities. 35. Upon returning to India from the United States, he continued to conduct field research . 36. The location of her field research is Greenland and Antarctica. 37. World War II interrupted Martin's field research for four years. 38. His own field research has concentrated on the Delaware languages and Meskwaki ( Fox ). 39. MZUSP also operates the Borac�ia Biological Station in the forest near Sales�polis for field research . 40. The field research on this species is part of the ongoing subject of Behavioral Ecology.
