[207]

Wallace Isl Life * (see next column)

70 excellent general remarks

73 see Lyell Princ II

79 — dispersal along mountain chains— debris forms fresh empty soil for foreign plants

480 same thing in detail

481 Diplotaxis muralis used to only found near sea, spread along railway embankment— & now established

482 lot of other facts showing that plants only known at distance appear on embankments and then get killed off railway from Yarmouth to Caistor passes through sandy 'Denes'— here Delph

Ajacis only known 30 miles off in Cambs lived for a few years
Stellaria media Chesterton killed by granes & carexes

p 70 — 71 — 72 — Sea a barrier to mammals ∴ mammals used as test of which arnnection has existed—
Storms carry leaves — Natural rafts important hay &c and we are certain they carry seeds even if do not see them
80 Great antiquity of plants makes chance distribn easier to understand

Slower Readings with Varying Pressure [sketch]