42 
INTRODUCTION. 
IV. 
Charleston harbour, as well as the first collection of Florida Algae which I received, 
and which Dr. Gibbes obtained from their collector, the late Dr. Wurdemann. 
Through Professor Asa Gray, of Cambridge, Mass., long before it was my good 
fortune to know him personally and intimately, I received collections of the Algae 
of Boston Harbour made by Mr. G. B. Emerson, Miss Morris, and Miss Boring, 
(now Mrs. Gray) ; also of the Algas of Rhode Island, made by Mr. S. T. Olney, 
who has done so much to illustrate the botany of that State, and by Mr. George 
Hunt. My gatherings from the same coasts have since been much enriched by 
specimens from Dr. Silas Durkee, of Boston, Dr. M. B. Roche, of New Bedford, 
and Mrs. P. P. Mudge, of Lynn. 
To Professor Tuomey, of the University of Alabama, I feel especially indebted 
for the care and kindness with which he formed for me an interesting collection of 
the Algas of the Florida Keys, and the more so because this collection was made 
purposely to aid me in my present work. My friend Dr. Blodgett, of Key West, 
also, since my return to Europe, has communicated several additional species, and 
is continuing liis researches on that fertile shore. To the Rev. W. S. Hore, now of 
Oxford, England, (a name well known to the readers of the Phycologia Britannica) 
X am indebted for a considerable bundle of well preserved specimens, gathered at 
Prince Edward’s Island, by Dr. T. E. Jeans ; and to the kindness of my old friend 
and chum, Alexander Eliott, of the Dockyard, Halifax, I owe the opportunity 
of a fortnight’s dredging in Halifax harbour, and many a pleasant ramble in the 
vicinity. 
My personal collections of North American Algae have been made at Halifax ; 
Nahant beach ; New York Sound ; Green Port, Long Island ; Charleston harbour ; 
and Key West ; and are pretty full, especially at the last named place, where I 
remained a month. 
The few Mexican species which find a place in this work have been presented to 
me by Prof. J. Agardh of Lund, and were collected by M. Liebman. Those from 
California are derived partly from the naturalists of Capt. Beechey’s voyage ; a few 
from the late David Douglas ; and a considerable number brought by my prede- 
cessor, Dr. Coulter, from Monterey Bay. I have received from Dr. F. J. 
Rupreci-it of St. Petersburgh several Algae from Russian America ; from Sir John 
Richardson a few Algae of the polar sea ; and various specimens of these plants, 
which have found their way from the North West Coast to the herbarium of Sir 
W. J. Hooker, have, with the well-known liberality of that illustrious botanist, 
been freely placed at my disposal. 
But I should not, in speaking of the North West Coast, omit to mention a name 
which will ever be associated in my mind with that interesting botanical region, 
the venerable Archibald Menzies, who accompanied Vancouver, and whom I 
remember as one of the finest specimens of a green old age that it has been my lot 
to meet. He was the first naturalist to explore the cryptogamic treasures of the 
North West, and to the last could recal with vividness the scenes he had witnessed, 
and loved to speak of the plants he had discovered. His plants, the companions of 
his early hardships, seemed to stir up recollections of every circumstance that had 
attended their collection, at a distance of more than half a century back from the 
