5 1 MATHEMATICS 



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Smith, C. Elementary treatise on solid geometry. 



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 5163 Thompson, H. D. Elementary solid geometry. 



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"5164 Forsyth, A. R. Lectures on the differential geometry 



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5164 Wood, P. W. The Twisted cubic. Camb. 1913. 



5165 MODERN CO-ORDINATE GEOMETRY. 



^5165 Cesaro, E. Natiirliche Geometrie. Leip. 1901. 



"5165 Jessop, C. M. Treatise on the line complex. 



Camb. 1903. 



"51651 Ferrers, N. M. Trilinear co-ordinates, reciprocal polars, 



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"51651 Lilienthal, R. V. Vorlesungen* iiber Differential- 



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'51651 Milne, W. P Homogeneous co-ordinates. Lond. 1910. 



-5 1 65 1 Whitworth, W. A. Trilinear co-ordinates. 



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~5 I 659 Henderson, A. The Twenty-seven lines upon the cubic 

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5168 VECTORS. 



5168 Burali=Forti, C. and Marcolongo, R. Elements de 



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5168 Dickson, L. E. Linear algebras. Camb. 1914. 



-5 1 68 Qibbs, J. W. Vector analysis. New York 1902. 



^5168 Hamilton, Sir W. R. Elements of quaternions. Ed. 



Joly. 2 vols. Lond. 1899-1901. 



5168 Henrici, O. Vectors and rotors. Lond. 1903. 



'5168 Joly, C. J. Manual of quaternions. Lond. 1905. 



'5*68 Kelland, P. and Tait, P. Q. Introduction to quater- 

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'5*68 McAulay, A. Octonions. Camb. 1898. 



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