474? British Association for the Advancement of Science, 



Fossce interdigitales magnse. Folliculi inguinales nulli. Mammce qua- 

 tuor. Typus est Kemas Ghoral {Ant. Goral). 



6. Capricornis. Cornua in utroque sexu. Sinus lachrymales 

 magni. Fossce interdigitales distinctse. Folliculi inguinales nulli. 

 Mammce quatuor. Typus est C. Thar {Ant. Thar, Hodg.). 



7. Bubalus. Cornua in utroque sexu. Sinus lachrymales exigui, 

 distincti. Fossce interdigitales magnse. Folliculi inguinales nulli. 

 Mamma duse. Typus est Bubalus Mauritanicus {Ant. Bubalus). 



8. Oryx. Cornua in utroque sexu. Sinus lachrymales nulli. Fossce 

 interdigitales magnse. Folliculi inguinales nulli. Mammce quatuor. 

 Species sunt 0. Capensis {Ant. Oryx), Leucoryx, Leucophcea, &c. 



9. Bos. Cornua in utroque sexu. Sinus lachrymales nulli. Fossce 

 interdigitales nullse. Folliculi inguinales nulli. Mammce quatuor. 

 Typus est Bos Taurus. 



" I have here confined myself strictly to generic characters ; the 

 synonyma and discrimination of species will form the subject of a 

 future monograph ; in the mean time, with the assistance of the Ar- 

 ticle Antelope in the Penny Cyclopaedia, or, with the proper cor- 

 rections of Col. Smith's Treatise on the Ruminants in the fourth 

 volume of Griffith's Translation of the ' Regne Animal,' the student 

 will have no difficulty in referring any particular species to its appro- 

 priate genus. He will thus be enabled to judge of the correctness or 

 incorrectness of the affinities here indicated, and consequently to form 

 a tolerable estimate of the value of the characters by which I propose 

 to distinguish the genera of ruminating animals ; and indeed it is 

 principally from the wish to excite the attention of zoologists to 

 more extensive observation than I myself possess, that I have been 

 induced to publish the present analysis of my own investigations in 

 this department of Mammalogy." 



Mr. Gould exhibited numerous examples of the genus Strix (as 

 at present restricted), from numerous parts of the globe, including 

 three undescribed species from Australia, which he characterized as 

 follows, the characters being given in No. 48 of the Society's Pro- 

 ceedings. 



Strix castanops. Long. tot. 18 unc; rostri, 2\; alee, 15; caudce, 

 7 ; tarsi, 3^. Hab. In Terra Van Diemen. This is the largest known 

 species of the restricted genus Strix, of which the common Barn Owl 

 is a typical example. Strix Cyclops. One of the most beautiful spe- 

 cies of the genus. Strix delicatulus. Long. tot. 14 unc; rostri, If; 

 alee, 11; caudce, 4; tarsi, *2\. Hab. In Nova Cambria Australi. This 

 species in some respects very closely resembles the common British 

 Owl, St.flammea ; but it has a longer bill, and is considerably smaller. 



BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE! 

 MEETING AT LIVERPOOL. 



Sept. 11. Mr. Whewell rapidly sketched the principle on which his 

 instrument registered the quantity of aerial current passing any place. 

 He had exhibited the instrument in an unfinished state at the Dublin 

 meeting, and in a more matured state of its existence at Bristol ; it 



