93.Logic,p.284(bk.iii.ch.ix.section 6).
94.Sigwart's Logik (1889)ii.461.
95.Herschel's Discourse first appeared in 1830as the first volume of Lardner's Cabinet Cyclopaedia.The 'four methods'are noticed,as Mill states,though with comparative vagueness,in chap.vi of the Discourse.Jevons prefers the statement to Mill's.Whewell makes the obvious remark (Philosophy of Discovery,p.284)that the four methods resemble some of Bacon's Praerogative Instantiarum.
96.For Whewell,see the Writing so described as to form a biography by I.Todhunter (2vols.1876).The Life and Correspondence,by Mrs Stair Douglas,appeared in 1888.Whewell's chief philosophical works are:History of the Inductive Sciences (3vols.8vo,1837;section edition,1840;third edition,1857);Philosophy of the Inductive Sciences (2vols.1840:second edition,1857).This book was afterwards divided into three:--History of Scientific Ideas,2vols.1858;Novum Organum Renovatum,1vol.1858;and Philosophy of Discovery,1vol.1860.
Whewell also wrote a pamphlet Of Induction with special reference to Mr J.Stuart Mill's 'System of Logic'.This is republished as chap.xxii of his Philosophy of Discovery.
97.Republished in Herschel's Essays (1857),pp.142-256.
98.Scientific Ideas,i.88(note added to this edition).
99.Philosophy of the Inductive Sciences (1847),ii.311.
100.Philosophy of the Inductive Sciences,i.80.
101.Whewell's Philosophy of Inductive Sciences,i.216-21;Mill's Logic,pp.160,265(bk.ii.ch.v.section 6,and bk.iii.ch.viii.section 7).
102.Whewell,indeed,says that the 'necessary law'is that a change of velocity must have a cause;the 'empirical law'tells us that the time during which it has been moving is not a cause.
--Philosophy of the Inductive Sciences,ii.591.I need not go into this.
103.Logic,p.151(bk.ii.ch.v.section 3).
104.Logic,p.190,etc.(bk.iii.ch.ii.section 3,4);Ibid.p.423(bk.iv.ch.i.section 4).
105.Logic,p.207(bk.iii.ch.iv.section 1).
106.Autobiography,pp.168,173.
107.Logic,p.548(bk.vi.ch.ii.section 2).
108.Autobiography,p.108.
109.Logic,p.557(bk.vi.ch.iv.section 3).
110.See his view that the difference of character between the sexes is due to external circumstances,and therefore removable.
--Logic,p.566(bk.vi.ch.v.section 3).
111.Logic,pp.567,569(bk.vi.ch.v.section 4,5).(Art is misprinted 'act'in the last edition.)112.Ibid.p.185(bk.iii.ch.i.section 1).
113.Logic.p.144(bk.ii.ch.iv.section 5).
114.Ibid.pp.576,585(bk.vi.ch.vii.section 4;bk.iv.ch.ix.section 2).
115.Ibid,p.303(bk.iii.ch.xi.section 3).
116.Autobiography,p.159.
117.Autobiography,p.160.
118.Logic,p.583(bk.vi.ch.ix.section 1).
119.Ibid.p.590(bk.vi.ch.i.section 3).
120.Ibid.p.584(bk.vi.ch.ix.section 1).
121.Bk.vi.ch.x.
122.See especially the reviews of Tocqueville,Michelet,and Guizot in the Dissertations.
123.Dissertations,ii.121.
124.Lettres inites de Mill ?Comte (1899),p.xxxv.Mill's letters to Comte upon his view of ethology are significant.
