12 



Periodic functions of one variable 



4030-4060 



of several variables . . 4070 



Permutations . . , . . . 1620 



Groups of . . . . 1210, 2450 



Perspective 6840 



Pfaffians 5210 



Philosophy 0000 



Physical problems, Analytical 



methods connected with 5600-5660 

 Physics, Differential equations of 



mathematical .. .. 5630-5660 



Planimetry 6810 



Polynomials, rational . . . . 1610 



Prime numbers, Distribution of 2900 



Probabilities 1630 



Processes, infinite . . . 3220 



Products, infinite . . . . 3220 



Projective properties of conies . . 7220 



of higher algebraic 



plane curves . . 7620, 8030 

 of quadric surfaces . . 7250 



Quadratic forms 



residues 



<5uadrature of curves 

 Quadric surfaces, 



of . . 



Systems of 



•Quantics, binary. . 

 ternary 



Theory of . . 



Quartic equations 

 Quaternions 

 Rational fractions 



numbers 



polynomials 



Reality of roots . . 

 Eeal variables, Functions of 

 Rectification of curves . . 

 Recurring series . . 



2830-2840 

 . . 2820 

 . . 8460 

 G-eometry 



7240-7260 



. . 7260 



. . 2050 



. . 2060 



2040-2070 



. . 2430 



. . 0830 



. . 2410 



0410, 0420 



. . 1610 



. . 2420 



3^0 



8460 



6010 



1610 



Reducibility of polynomials 

 Reduction of ordinary differem ial 



equations , . . . . . 4820 



of partial differential 



equations . . . . 4830, 4840 



Reports 0020 



Representation of surfaces, con- 



formal 8840 



Residues, cubic . . . . . . 2850 



higher 2850 



quadratic . . . . . . 2820 



Resuhants 2020 



Riemann surfaces . . . . 3620 

 Roots of algebraic equations 2410-2420 

 Second and higher orders, Differ- 

 ential forms of . . . . 5220 

 Ordinary non- 

 linear equations of . . 4880 



Partial dif- 



ferential equations of . . 4840 



Separation of roots . . . . 2420 



Series in general . . . . . . 3220 



Series, Fourier's ., .. 8220,5610 



-• of function33220, 3630, 5610, 5620 



recurring . . . . . . 6010 



Taylor's 3240 



Simultaneous equations . . . . 2460 



Skew curves . . . . 7660, 8030 



Curvature of . . . . 8440 



Societies, Reports of . . . . 0020 



Solid geometry 6820 



Solution of equations, general . 2450 



numerical . . 2440 



of ordinary differential equa- 

 tions, Methods of . . 4820 



Partial differential 



equations . . . . 4830, 4840 



Space, Topology of . . . . 6420 



Special algebraic equations 2430 



functions, see particular 



titles. 

 Spheres, G-eometry of . . . . 6820 



Spherical geometry . . . . 6820 



Stereometry .! .. .. 6820 



Substitutions, linear .. 2000,2030 

 Surfaces, algebraic . . 7200-8100 



Genus of . . . . 8040 



Groups of curves and 



points on . . . . . . 8040 



Application of differential 



calculus to . . . . 8450 



Areas of 8460 



conformal . . . . . . 8840 



Conformal representation of 8840 



Curvature of . . 8450, 8830 



Curves on 8810 



Deformation of . . • . 8850 



isothermic 8860 



minimal 8820 



of higher degree than the 



second . . 7640 7660, 8040 

 ortliogonal . . . . . 8860 



quadric . . . . 7240-7260 



Riemann 3620 



Systems of 8090 



transcendental . . . . 8480 



Yolumesof 8460 



Symmetric functions of roots . . 2410 

 Systems of curves and surfaces . 8090 



Tables 0030 



Tangential transformations of 



differential forms .. .. 5230 



Tavlor's series 3240 



Ternary forms . . . . 2060, 2840 



Text-books 0030 



Theoretical dynamics, Differential 



equations of . . . . . . 4830 



Theta functions, multiple 



4070, 8050, 8060 



single . . 4040, 8050, 8060 



Topology of space and hyperspace 6420 

 Transcendental functions, Appli- 

 cation to algebraic curves 



4040-4060, 8050 



