Microscopical Essays, 

 Brachionus corpore conico fubzequali. Hill Hifl. Anim, 



Brachionus corpore conico torulofo. Ditto. 

 Brachionus. Pallas Zooph. 50. 



Joblot Microf. part 2, p. 77, plate io s fig. 18; and p. 96, 

 plate 5, A B C D E K. 



Adams's Micrographia Illuftrata, p. 148, plate 40, fig. 255, 



Leeuwenhoeck Contin. Arc. Nat. p. 386, f. i 5 2. 



Baker's Microf. Exp. p. 95, pi. 6, f. 6, 7, 8. 



Baker's Empl. for the Micr. p. 348, 379, pi. 11, f. 1 to 13 ; 

 and fig. 1, 2, 3, 6, 7, 11, 12, 14, 15, 16, 17, 18, io 5 20, 21, 

 22, 23, of plate XXVI. A, belonging to the work. 



Spallanz. Opufc. 2 p. 301, 345, pi. 4, £ 3 to 5. 



Rozier Journal Fhyfique, 1775, p. 220. 



No perfon feems to have fucceeded fo well in the defcription of 

 the wheel animalculum as Mr. Baker, and all fucceeding writers 

 refer us to him for a full account of this little creature. What I. 

 mail fay upon this animalculum will therefore be taken chiefly 

 from him, though with fuch additions and alterations as appear 

 to me neceffary to render his account complete, 



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