[73]

X 5. a technical variety (Q) ought to have some stability, & without links well known wd appear a species

5 intermediate vars. rarer than the extremes (Q)

24 Proport numbers of Madeira Beetles — Does not attribute (Q) much to Climate p. 29, 31 examples p. 32 Irish climatal vars.

38. ask where to draw line of distance in making species (Q) Glacial Beetles p. 38 (Mem. effects on larvae)

⸮39 instances of vars on Madeira mountains (Q)

(Q) 40 effects of sea-shore 57 do. to 61, 63 — p. 64 important & proper saline are testaceous like the vars.

X 44. variation (Q) of wings (Q) in Calathus rudimentary or gone (Q) & other cases p. 101 wings p. 96 on connectedness

50 54 On paucity of insects in Islands forests of Madeira, T. del Fuego & Ireland

54 Islands few insects to

61. form which is var. in England is typical on continent.

62 variation analogous to other species of genus (Q)

65 various variations which can be only vaguely put down to conditions

67 certain districts more apt to produce vars than others

X 68— good case of variation p 75 (Q)

70 on difficulty of distinguishing vars. from species in Madeira (Q) Ch. 4

71 Effects of Isolation (Q)

73 Diminution of size in Islands

81. thinks decrease of size of wings increases body ?

82. Proportion of apterous Beetles — p 86 my notion p 99 (Q)

84 Glacial Beetle. 38

88 variation of separate islets — think of their crossing if united

96 Antennæ number of joints varying

104 size & colour go together in varying

105 on distinct states of insects in size not connected (so p. 106 in shells & Birds ) by intermediate forms

120 on direction whence Madeira colonised, 124

✓ 125 Deucalion thinks does not spread owing to Sedentary Habits (Q)

✓ 129 on 3 representative shells identical with the fossil in Calc. beds (Q)

13 130 size of P. Santo

130 — on variation since calc. beds & extinction little — We shd not expect change in sea-shells

✓ 131 On fossil & recent shells still inhabiting same spot (Q) shows great antiquity of variation

133 varieties of shell in each district.

143 on geographical sections of genera

147 Beetles crossing seas my facts

✓ 153 Local insects opposed to severe struggle for existence (Q)

[75]

p. 166 groups exist, whether or no there be great breaks p. 172 do p 175 do

p 177 thinks the most distinct or isolated genera occur in islands

178 Black Rat yet abundant on Lundy Islds.

X 185 — Thinks many geographical sub-species exist (Q)

188 Argues how absurd that several species shd have been formed on same spot; why then were they created.— can you explain why one commoner than other what do you know of their larval life

Letter on insects being larger on Dezerta Grande

do on other orders not being so peculiar as Coleoptera.