THE NORWEGIAN NORTH-ATLANTIC EXPEDITION 
1876—1878. 
SEVENTH VOLUME. 
ZQ0LOGY. 
Tunicata: 
Peay Mascidieues on ex .-. . by H. Huitfeldt-Kaas. 
2. Ascidiæ simplices and dr rer . . by Kristine Bonnevie. 
3. A List of Norwegian Ascidie simplices . . . by Johan Kiær. 
4, On Gemmation in Distaplia maenilarva and 
Pyrosoma elegans . . . by Kristine Bonnevie 
5. Germ-Layer Studies based upon me Hecoleament 
Johan Hjort: 
ode Dy Kristine’ Bonnevie. 
Ke 0 Nordeeard 
Mason FM Hans Kjer 
Modusca IA GERE . by Herman Friele & James A. Grieg. 
Chemical Examination on Shells of Malins . by L. Schmelek. 
BOTANY. 
Protophyta: 
Diatomaceæ, Silicoflagellata and Cilioflagellata . by H. H. Gran. 
