PLATE XXXVIII 



Fig. I. Embryo and foetal membranes of Fin whale, No. 949. Natural 

 size. 



Fig. 2. Embryo and foetal membranes of Sei whale, No, 1074. Natural 

 size. 



Fig. 3. Embryo and foetal membranes of Blue whale, No. 900. Natural 

 size. 



