Vessel for preservation and transfer of nematodes
PURPOSE: To provide the vessel which allows the easy and rapid recovery of the nematodes on carrier parents at a high yield, further obviates the inclusion of the small pieces of the carriers into the recovered and separated nematodes suspension and does not hinder the apparatus to be used. CONSTITUTION: This vessel for the preservation and transfer of the nematodes consists of a hermetically sealable vessel and has a first chamber 23 for housing the carrier parents 26 of the nematodes, a second chamber 24 for easily recovering the nematodes from these parents and a nematodes permeable intermediate part 25 for holding the carrier parents in the first chamber. COPYRIGHT: (C)1994,JPO
The article examines the general affirmation that communication networks and mobility are important to science by examining how these factors played a relevant role in one specific case, that is, research on the embryology of certain species of armadillos in the early twentieth century. As we show, access to pregnant females of the species and transport time from the wild to the laboratory were significant issues in the early days of such research. The strategies used to obtain field samples, the temporality of certain phenomena, the commercial circuits of which the organisms under study were a part, and the transformations they underwent in the laboratory all afford a glimpse at some aspects of how these scientists approached their work and what problems they faced in producing new knowledge.