Image from the Biodiversity Heritage Library.
Contributed by American Museum of Natural History Library.
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Transcription
Fig. 11. A method of dealing with spec:es that bite or sting.
Fig. 12. The technique of light sweeping, showing the paths of the collector and his net, with the positions of the bag during the stroke.
Fig. 13. Aquatic nets; dip net above, scrape net below.