Obituary Notices. 
xxxi 
59. “ The Gyroscope.” 1856. 
60. “ Higher Arithmetic.” W. Blackwood & Sons, 1857. 
61. “On the Exhibition of Both Roots of a Quadratic Equation by One 
Series of Converging Fractions.” Read before the Royal Society of Edinburgh, 
18th January 1858. 
62. “ Life Assurance and Annuity Tables, for every Combination of Two 
Lives.” Yol. ii. 1859. 
63. “ Pendulum.” Encyclopaedia Britannica , vol. xvii. 
64. “Perspective.” Encyclopaedia Britannica, vol. xvii. 
65. “Saw and Saw Mill.” Encyclopaedia Britannica , vol. xix. 
66. “ Skew Bridge.” Encyclopaedia Britannica, vol. xx. 
67. “ Determination of the Form of a Ship’s Hull.” 1861. 
68. “ Sefinet Equation for Determining the Form of a Ship’s Hull.” 1863. 
69. “ Catadioptric Altitude and Azimuth Circle.” 1862. 
70. “ Deflection of Plummet.” 1862. 
71. “ Roots of Equations. ” 1863. 
72. “ Roots of Equations.” 1864. 
73. “Crystal Pointer Clock Adjustment.” 1864. 
74. “ Commensurables.” 1864. 
75. “ Motion in a Circle.” 1865. 
76. “Epicycloid.” 1865. 
77. “ Recurring Functions.” 1866. 
78. “ Brouncker’s Method. ” 1870. 
79. “Motion in a Circle.” 1870. 
80. “ Account of New Table of Logarithms to 200,000.” 1872, 
81. “ Crystal Cavities.” 1873. 
82. “ Rope Yarn Machine.” 1873. 
83. “ Canon of Sines.” 1877. 
84. “ Revolving Wire.” 1877. 
85. “ Unround Discs.” 1877. 
86. “ Wheel Teeth. ” Part ii. 1877. 
87. “ Ballistic Curves.” 1878. 
88. “ Earth’s Density.” 1878. 
89. “ Approximating Fractions.” 1878. 
90. “ Optimum Wheel Teeth.” 1879. 
91. “ Noveau Calcul.” 1879. 
92. “Addition on Noveau Calcul.” 1880. 
93. “ Comet.” 1881. 
94-5. “ Solar Eclipse — Mirage.” 1882. 
96. “ Time of Descent in a Circular Arc.” 1882. 
97. “Aerial Images.” 1883. 
98. “ Nodus Rosi.” 1883. 
99. “ Simple Flexure.” 1883. 
100. “ Cubic Equations. ” 1884. 
101. “ Log* Sines (on the Construction of the Canon of;.” 1884. 
102. “Lathe Band.” 1884. 
103. “ Decimal Sub-Division.” 1884. 
* “Trigonometrical and Astronomical Calculations, 47 vols. 
