At the outset of this memoir it must be said, that ii is in fad a joinl work by 

 Ihe first discoverer of the remarkable hypostoraic structure to be described, Herr G. 

 Liljevall, and by myself. A considerable portion of this work betongs to him as he 

 with great discernment searched for a large amount of the material, prepared it as to 

 be fit for the many microscopio sections which he executed, and at lust with his well 

 known artistic skill drew the figures. My share, again, in the common work eonsists in 

 the supervision of the figures, in the arrangement of the observations and details in a 

 coherent form, in which suggestions and remarks of Herr Liljevall have boen of great 

 use, further to write the descriptions and to make all the necessary researches in literature, 

 so whatever may be faulty in these respects must be laid to my charge. 



September 12th 1900. 



G. LINDSTRÖM. 



K. Sv. Vet. Akail. Hundl. Band 34. N:o 8. 



