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1862. Untersuchungen iiber niedere Seethiere. Einige Bemerkungen 

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1870. On a new species of Sagitta from the south Pacific. Ann. Mag. 



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1905. A self-closing water bucket for plankton investigations. Cons, 

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1907. The coincident distribution of related species of pelagic organ- 

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1911. On a self-closing plankton net for horizontal towing. Univ. Calif. 

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1853. Nachtragliche Bemerkungen iiber den Ban der Gattung Sagitta, 

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