64 



"ølgende skal se. fortjener disse Bundprøver ogsaa af andre 

 Grunde < Ipmærksomhed, da de hører til det mest kalk- 

 fattige Parti af Biloculinleret. 



Efter hvad der forud er sagt, vil det være indlysende, 

 at Kjendskabet til Biloculinlerets Kalkgehalt frembyder en 

 særegen Interesse baade for det zoologiske og det fysiske 

 Studium af Havets Naturforhold. Foruden de foregaaende 

 fuldstændige Analyser af Biloculinleret har jeg derfor be- 

 stemt dets Kalkgehalt i de Heste af de Prover, der er op- 

 tagne indenfor dette Sediments Omraade. I den følgende 

 Tabel tindes forøvrigt ogsaa nogle Analyser af Prover fra 

 ( (vergangsleret. 



otlier respeet deserving of attention. consisting as they do 

 of Biloculina clay from the locality in vliich that deposit 

 is found to contain the smallest amount of lime. 



From what has heen previously stated. it must obvi- 

 ously be of special importance for the study of the physical 

 and biological conditions of the sea. to determine the 2>ro- 

 portion of lime present in Biloculina clay: and I have. 

 therefore. exclusive of that given in the foregoing complete 

 analyses, also determined the amount of lime in most of 

 the samples brought up within the limits of the said deposit. 

 For the rest. a fev analyses of transition clay will be 

 also found in the subjoined Table. 



