INDEX. 835 



Talbot (H. Fox). Some Mathematical Researches, 573. 



On Cubic Equations, 573 



Third Co-ordinate Branch of the Higher Calculus. By Edward Sang, 515. 



Transversals, Consecutive Series of Seveuty-two Propositions in. By Rev. Hugh Martin, 37. 



Traquair (Dr Ramsay H.). Description of Pygopterus Creenoclcii (Ag.), from the Wardie Shales; 



with Notes on the Structural Relations of the Genera Pygopterus, Amblypterus, and 



Eurynotus, 701. 

 Trilinear Co-ordinates, a Study of; being a Consecutive Series of Seventy-two Propositions in 



Transversals. By the Rev. Hugh Martin, 37. 

 Turner (William). On Variability in Human Structure ; with Illustrations from the Flexor 



Muscles of the Fingers and Toes, 175. 



V 



Variability in Human Structure ; illustrated by the Flexor Muscles of the Fingers and Toes. By 

 William Turner, 175. 



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