5i MATHEMATICS 



5138 Sommerville, D. M. Y. Elements of non-euclidean 

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5138 Vasiliev, A. V. Lobachevsky. Austin, Tex. 1894. 



5138 Veronese, Q. Geometric von mehreren Dimensionen. 



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'5138 : 01 6 Sommerville, D. M. Y. Bibliography of non-euclidean 

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5139 Lame. G. Methodes pour resoudre les problemes de 

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514 TRIGONOMETRY. 



514 Lock, J. B. and Child, J. M. New trigonometry for 



schools and colleges. Lond. 1911. 



514 Newman, F. W. Higher trigonometry. Camb. 1892. 



514 Snowball, J. C. Plane and spherical trigonometry. 



Camb. 1863. 



A 2 Urquhart, Sir T. [Kings Coll., 1622]. The Trissotetras ; 



or table for resolving all triangles. Lond. 1645. 



.5142 Lebesgue, H. Le9ons sur les series trigonometriques. 



Paris 1906. 



5145 Bourlet, C. E. E. Le9ons de trigonometric rectiligne. 



Paris 1898. 



5145 Hobson, E. W. Plane trigonometry. Camb. 1918. 



5145 Todhunter, I. Plane trigonometry. Lond. 1917. 



5146 McClelland, W. and Preston, T. Spherical trigono- 

 metry. 2 vols. Lond. 1903. 

 5146 Todhunter, I. Spherical trigonometry. Lond. 1903. 

 -51082 Bell, H. Solution of spherical triangles. Lond. 1915. 



Edi 



515 DESCRIPTIVE GEOMETRY. 



515 Gregory, D, Treatise of practical geometry. Trans, 



from Latin [by C. Maclaurin]. Edin. 1745, 1787. 



-51082 Ince, E. L. Course in descriptive geometry. 



Edi Lond. 1915. 



515 Loria, G. Vorlesungen iiber darstellende Geometrie. 



Pt. l-> Leip. 1907-> 



55 



