818 BIBLIOGRAPHY [APP. VII 



Brandt, K. " Haeckel's Ansichten iiber die Plankton-Expedition." 

 Schriften des naturwissenschaftlichen Vereins Schleswig-Holstein, Bd. viii. 

 Heft 2, 1891. (Deals also with Haeckel's criticisms.) 



KoFOiD, C. A. " On some sources of error in the Plankton method." 

 Science (N.S.), Vol. vi. pp. 829 — 831. (Defects of the vertical plankton 

 net.) 



LoHMANN, H. " Ueber das Fischen mit Netzen aus Miillergaze Nr. 

 20 zu dem Zwecke quantitativer Untersuchungen des Auftriebs.^' 

 Wiss. Meeresunt. Bd. v. Heft 2, Kiel, 1901. (Critical examination of 

 the grounds of Kofoid's objections.) 



LoHMANN, H. "Neue Untersuchungen iiber den Reichtum des 

 Meeres an Plankton." Wiss. Meeresunt. Kiel Koram. Bd. vii. Abth. 

 Kiel, 1903. (This is quite a fundamental piece of research. It deals 

 critically with the methods of plankton fishing.) 



LoHMANN, H. " Untersuchungen zur Feststellung des voUstandigen 

 Gehaltes des Meeres an Plankton." Wiss. Meei^esuiit. Kiel Komm. 

 Bd. IX. Abth. Kiel, 1908. (A development of the subject of the above 

 two papers.) 



Apstein, C. " Die Schatzungsmethode in der Plank tonforschung." 

 Wiss. Meeresunt. Kiel Komm. Bd. viii. Abth. Kiel, 1905. (Deals 

 critically with the methods of estimating plankton catches.) 



Herdman, W. a. Presidential address to Linnean Society of 

 London, 1907. 



Herdman, W. a., and Scott, A. Intensive study of the marine 

 plankton around the south end of the Isle of Man. Annual Report 

 Lancashire Sea Fisheries Laboratory, Liverpool, 1908. 



(4) Hydrography. 



The literature is very scattered. Newer results are contained in 

 the Bulletin des ResuJtats of the International Fishery Investigation 

 Council, and in the Rapports et Proces-Verhaux (especially Vol. iii.). 

 Valuable papers on hj'drographical results and methods are also 

 contained in the Puhlications de C irco7istance of the same body. These 

 papers cannot be neglected as they contain the most recent hydro- 

 graphical results. The English Blue-Books giving the results of the 

 English and Scottish fisher}'' investigations carried on under the 

 international scheme are also important. Their dates and numbers 

 are Cd. 2670, 1905, and Cd. 2612, 1905. Petermann's Mittheihmgen 

 contains papers and summaries of interest ; so also the Scottish 



