He was active in various natural history organizations and became an important factor in furthering interest in local science. He began to travel more widely, visiting the West Indies in 1893 with Alexander Agassiz, going with Morse in 1902 to the Southern States, in 1905 to the Californian Mountains, in 1914 to the Canadian Rockies, in 1920 to the Hudson Bay Region. On these and numerous shorter trips he industriously collected spiders.