344 Notice of Dr. Hooker’s Flora of New Zealand. 
configuration of the land and seas of Northern Europe. The argu- 
ments which a. this theory are based upon evidence derived from 
feature 
The spastephiend distribution of British plants has been the subject 
of the most rigorous investigation by one of our ablest British botanists, 
. Wa atson, who first drew attention to the various botanical 
ae: Cybele esate vol. i, p. 18). ion 
tion of them shows the relations borne by the plants of England to 
those of certain —_— of Europe and ‘of the Arctic regions; and Pro- 
aaa a Saeivas association of Poon 
To extend a theoretical oe ‘of these views to the New Zea- 
land Flora, it is necessary fo assume that there was at one time @ land 
necessary to suppose that for this interchang e there was a continuous 
2) 
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wm 
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bee 
2 
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2 
oO 
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"a 
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= 
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38 
was as yet above water.t To account, however, for the Antarctic 
* For the enn of the Essay eh - mae refer to the Records of the Geolog- 
ical Surve a _— at a vol. i, his is the _ original and able. essay 
ared o1 ibseri be to 
° rae * d 
tanical details. consider sti the mode of reasoning adopted is per ae gulf- 
versal application. What I dissent from most strongly is, the origi a 
ed, the ling of Scotch mountains by iceberg tran of seeds, and ne 
great stress laid upon the west Irish flora, whose peculiarities appear : 
1 ver-estimated., 
+ It may be well to state to the New oe a spe se are no reasons 
to suppose that Botany can ever be ex ct proof 0 of _— 
having survived geological changes of ee ~ —- ee eer fos gdes do; of 
ed, even w her to new, 
¢ This disappearance : ne aed cists Ps oe ee of i = flora and fauna pee | 
may be illustrated to a meen extent by the ‘delta of an ew Zealand 1 the 
— as 
ad 
ves gr on the 0 st land i it forms. The ee" pie 8 
of of the t bank (oth its mangroves) is cut off, and becomes an island: anaee —_ 
of the river wihisccoy filis up that between the islet and the opposite shore, on the 
. hence becomes a peninsula, peopl d by. mangroves, ioe ree grew | ‘lave 
bank. Hert bt emred no su bsidence is req such as must 
cparsied i in the assumed iso! i Benet 
