. Fig. 18. Closing meqjianism for small horizontal nets: for explanation see text. Two kinds of messenger are ordinarily used with these mechanisms, both of the torpedo pattern described by Knudsen;^ they weighed 405 and 615 grm. respectively. 1 Knudsen, Pub. Circ, Cons. Explor. Mer, 77, p. 15, fig. 5, 1920.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition