4. Samples from the cruise, May 1897, 



with H. M. S. "Heimdal". 

 See the hydrographic tables A. V. 



Month 



Date 



Station 



Deptli in meter 



Temperature in degrees of Celsius 



Saline contents in "/d. 



I>iatoinisi. 



a) Oceanic forms. 



Coscinodiscus oculus iridis Bhb, . . . 

 Rhizosolenia semispina Hensen. . . . 

 Chaetoceros atlanticiim CI 



— boreale Bail 



— criophilum Castr 



— decipiens CI 



Tlialassiothrix longissima CI 



b) Neritic are'ie forms. 



ThalasRiosira liyaliiiii (Grun.) Giaii 



D inoila(i;:(> 1 1 ata. 



Ceratium tripos 



— — V. longipes Bail 



— — V. arctica Ehb 



— — V. macroceros Ehb 



— — V. Bucephalos CI 



— fusiis 



— furca 



Peridinium divergens 



Chlorophyceae. 



Halosphaera viridis Schmitz 



May 



11 



88 



5,5 



32.1 



0—100 



5..S 



34.3 



12 



89 



32.5 



+ 



0—100 



6.3 



35.0 



90 



5.4 



33.9 



0—100 



5.9 



34.6 



+ 



91 



6.4 



34.4 



+ 



0—100 



7.7 



35.1 



13 



93 



6.5 



35.0 



0—100 



6.5 



35.0 



95 



5.0 



34.8 



0—100 



5.2 



35.0 



97 



4.0 



34.7 



0—100 



3.3 



34.7 



14 



15 



18 



21 



99 



101 



103 



105 



109 



112 



3.4 



34.7 



0—100 



0—100 



0—100 



3.0 



1.7 



1.5 



1.1 



0.2 



0—100 



0.1 



0—100 



■0.3 



■0.7 



0.8 



0—100 



■0.1 



34.8 



34.7 



34.7 



34.6 



34.6 



34.4 



34.6 



34.4 



B4.3 



34.7 



34.5 



