Art. II. — Contributions to our Knowledge of the 

 Anatomy of Notorydes typhlojps, Stirling. 



Parts I. and II. 



By GEORGINA SWEET, D.Sc, 



Melbourne University. 



(Communicated by Professor W. Baldwin Spencer, F.R.S., &c.). 



(With Plates VI-IX.). 



[Eead 12th May, 1904.] 



Introduction. 



The investigation, of which the following forms a record, has 

 been carried on in the Biological Laboratory of the Melbourne 

 University, for the use of which I have to thank Professor 

 Spencer, who has also very generously placed his splendid stock 

 of animals at my disposal, and has given me facilities in obtain- 

 ing literature, some of which I might otherwise not have seen. 



The subject matter falls naturally into three parts, each of 

 which is complete in itself, though they are to a certain extent 

 interrelated. Part III., on the Eye, is now ready for the press, 

 an abstract of it having been read at the Dunedin Meeting of the 

 Australasian Association for the Advancement of Science, in 

 January, 1904. 



Part I. — Nose, with Organ of Jacobson and Associated 



Parts. 



Of the various structures to which of more recent years con- 

 siderable attention has been directed, not the least interesting is 

 the Organ of Jacobson, and with it the relations of the cartilages 

 and bones of this region. Especially is this so in view of the 

 valuable papers by Dr. Broom, on its comparative anatomy in 

 the various groups of the Metatheria and Eutheria, in which he 



