22 Rev. A. F. Kemp on the Shore Zones oj 



must however be made of the induction of particulars, if any sa- 

 tisfactory conclusions are to be reached, in this as in every other 

 branch of scientific enquiry. What I have to say at this time 

 on this subject, imperfect though it must be, may yet, as a be- 

 ginning, and so far as it goes, be suflSciently accurate to afford 

 rehable information to those who have not made this branch of 

 botany their study; it may also, as a starting point, lead to fur- 

 ther observations in the same field on the part of those who are 

 adepts in the sub-kingdom of Sea- Weeds. 



The tides along the Atlantic shores of the United States rise 

 about fifteen or twenty feet, and in their range atford a fine field 

 of research for the naturalist. This tidal shore I would divide into 

 six distinct zones. 



I. The Drift or beach Zone. 



II. The Ulva Zone. 



III. The Fucus Zone. 



IV. The Laminaria Zone. 

 V. The Chondrus Zone. 



VI. The Deep sea Zone. 



I. The Drift Zone. 



The first of these is not properly a zone of vegetation. Nothing 

 grows in it, to my knowledge, excepting millions of sea lice. It is 

 however important to the amateur collector. Here the waves drive 

 up masses of all the kinds of sea-weeds which the coast affords. 

 After a storm from the ocean no better field of research can be 

 resorted to for fine specimens of Algre. Ladies who are in search 

 of " mosses " for ornamental work, need go no farther to find all 

 that they want, than to this line on the beach. Timid collectors 

 too, who fear to wet their feet in the pools, or to hazard their 

 limbs on the slippery rocks of the lower shore, will find enough 

 to fill their wallets at zone number one. I note it chiefly for the 

 benefit of young collectors, and to point out to them, that in pro- 

 secuting the study of marine plants, they may, through the po- 

 tent agencies of the waves and the tides, do so without the least 

 inconvenience to themselves. 



II. The Ulva Zone. 



I call this zone by the name of the beautiftil green Ulva^ be- 

 cause this genus of plants has its chief habitat in the warm 

 pools and on the rocks which are found a little below high water 

 mark, 'the whole order Ulvacece^ indeed, flourish best in this 

 locality over the wide geographical limits within which it is 



