22 MEMOIR OF DR. HARVEY. 



who brought me letters of introduction, but whom I missed seeing*. 

 He offers to exchange the curiosities of the north for the south. 

 It is well to enlarge our borders when opportunity offers. My 

 journal already contains figures and descriptions of 100 plants, 

 many of them rare and curious, and some of them I flatter 

 myself are new. Among these is the Bed Snow of the Arctic 

 navigators, the Protococcus nivalis of Agardh. It grows on a 

 rock in Pavingstone Bay. I am beginning to get an idea of 

 Fungi. But I have had three months' idleness this year, and I 

 have a conscience, however small. Next season, I flatter my- 

 self — but we shall see. 



The only phaenogamic plant I shall have to send thee from 

 this is the Zostera marina, a bad specimen. It grows under 

 the sea opposite Quilty Stand in abundance. I have missed the 

 Sagittaria by not being at home, but surely I have got the 

 worth of it. 



To the Same. 



Sunmierville, Oct., 1B31. 



We got home from Miltown a few days ago, and I found a 



long letter from Hooker awaiting me. 



He has sent me a parcel of mosses by steamer (not yet 

 arrived), also a present of Agardh's " Systema Algarum," a scarce 

 book, and one which will be of great use to me in determining- 

 species. He will be very glad of some Biccia natans, so try and 

 get more, and send it alive, with a particular habitat, that I may 

 certify it to him as found by thee. He has given me his address 

 in London, that I may write to him while there ; and invites me 

 to Glasgow, saying I shall be most welcome to investigate his 

 duplicates of every sort, and have the free use of his library. 

 I cannot help thinking how fortunate it was that I got up so 

 early that morning at Killarney, and found the branch of 

 Hooheria Isete-virens. All our success since may be traced to 

 that. I intend soon to attack Greville with Algee, through 

 Hooker. I have found many things that ought to interest him. 



I do not know when I shall find time to look over the Kil- 

 larney mosses. Do gather odd-looking Hypnums, and send 

 them to me for the names, if at a loss. 



It is full time for thee to get a microscope. To possess dry 

 specimens (of mosses especially) without microscopic examina- 

 tion, is not to have any knowledge of them at all. 



