494 



INDEX. 



Intervals, Musical, Theory of, 130, 131; variovis pro- 

 blems on, 130 ; application of logarithms to, 130 and 

 note; Woolhouse's essay on, referred to, 135 



Invariable system, motion of, investigated, 11 — 18 



Kinematical problems, 5 — 7 ; a. Relative velocities of a 

 point in motion with respect to revolving axes, 5; 

 h. Accelerations, radial, transversal in the vertical 

 plane, and perpendicular to that plane, 6 ; c. Accele- 

 rations parallel to the tangent, principal normal, and 

 normal to osculating plane of any curve, 7 



Language, influence of schoolmen on, 332 



Lines (straight), properties of, investigated by means of 

 a series of propositions, 167—170; which involve a 

 new treatment of Euclid's Theorem of the simple ex 

 cequali, 166, and are proved by Elementary Geome- 

 try, ib. 



Lines of Force defined, 29 



Logic. See I)e Morgan. 



Milton's, 181 n.; Ramus', ib.; Sanderson's, 227; 



Port Royal, 188—228; Watts', 228; Hospinian's, 220 



general considerations, 173; Aristotle's logic only 



a beginning, 174 



not to be confined to the onymatic form, 335 ; of 



Relation, 331 



Logicians, the first were also mathematicians, 175 



Liigico-mathematical, logico-physical, logico-metaphysi- 

 cal, and logico-contraphysical modes of thought sym- 

 bolised, 190, 210 



Magnecrystallic Induction, Theory of, 45 



Magnetic Field, Uniform or Variable, considered, 70— 

 76 



Quantity and Intensity, 54 



Magnets, theory of action of, on magnetic or diamag- 

 netic spheres considered and explained, 70 — 76 



Permanent, Theory of, 44 



Mammary Secretion, Manifestation of Current Force 

 during, 257 



Material, some objections arising from its introduction 

 into logic considered, 177 



Material System, on Motion of, 7 — 10 



Maxwell, J. Clekk. On Faraday's Lines of Force, Preli- 

 minary explanations, 27 — 30; I. Theory of the Motion 

 of an Incompressible Fluid, 30 — 33, § 1 — 9; II. 

 Theoi-y of the uniform motion of an imponderable 

 incompressible fluid through a resisting medium, 33 — 

 42, § 10 — 33; Application of the Idea of Lines of 

 Force, 42, 43; Theory of Dielectrics, 43, 44; Theory 

 of Permanent Magnets, 44; Theory of Paramagnetic 

 and Diamagnetic Induction, 45; Theory of Magne- 

 crystallic Induction, 45, 46; Theory of the conduction 

 of Current Electricity, 46 ; on Electromotive Forces, 

 46—48 ; on the Action of Closed Currents at a Dis- 

 tance, 48 — 50; on Electric Currents produced by In- 



duction, 50, 51 ; Part II. on Faraday's " Electrotonic 

 State," 51; on Quantity and Intensity as Properties 

 of Electric Currents, 52 — 54 ; Magnetic Quantity and 

 Intensity, 54; Electromagnetism, 55 ; Analytical Theo- 

 rems, 57 — 62; bearing of the foregoing theorems on 

 the theory of magnetism, 62 ; Summary of the Theory 

 of the Electrotonic State, 65 — 67 ; Electrical and 

 Magnetic Problems with reference to spheres, 68 — 83 



Mode of thought, four-fold, how denoted and symbo- 

 lised, 190 



Momentum, 7 § 10; Conservation of, 9 § 16 



Momenta, linear and angular, defined, 8 § 11 



Motion of beams and elastic rods, 359 



Moving Axes, theory of, 1 — 20 



MuNRo, H. A. J., M.A. On a metrical Latin Inscription 

 at Cirta, 374 ; instances of Latin acrostichs, 376 ; Com- 

 modian's poems, ih. ; on rules of Latin accent, 377 

 on the Satumian, hexameter and iambic verses, 383 

 discussion of the inscription, 397; Appendix, 403 

 criticism on an article in Frasers Magazine, ib. ; on 

 the English Hexameter, ib. 



Muscles, voluntary, remarkable abnormities in, 240 — 

 247 ; varieties in, most frequent in parts the office of 

 which is different in difl'erent animals, 245 ; cases ex- 

 emplifying primary defects in, 240, 247 



Musical Intervals, 129, 130; measured by ratio, not by 

 difference, 129 



Names, uses of, 185; various to one relstion, 201; four 

 applications of, 206 ; formed from other names by in- 

 tension, extension, and combination, 207 

 Nautical Magazine, on windward sailing, 274 

 Notation, spicular, in logic, extension of, 198 



Observation, theory of errors of, 409 ; Deficiency in La- 

 place's investigation of, 415; first principles of, 416 



Octave, on the division of, 129, 130; new division of, 

 proposed, 130 



Onymatic relations, 190, 209 



logic not to be confined to, 335; extended com- 

 parison of, 459 ; system, 428 ; forms, deduced from 

 purely onymatic meaning, 455, and demonstrated to 

 be necessary and complete, ih. 



Organic Force, a Polar Force, 248, 260 



Polarity, 248; History of certain researches on, 



248, 249 



Osculating plane, acceleration normal to, shewn to 

 vanish, 7. 



Osmose, phenomena of secretion compared with, 259 ; 

 Graham's researches considered, ib. 



Paget, G. E., M.D. Instances of Remarkable Abnor- 

 mities in the voluntary Muscles, 240 — 247 ; description 

 of two cases of, in brothers, 240 — 243 ; the abnormities 

 in these cases of two opposite kinds, characterised 

 by defect and excess of muscular development, 243; 



