In presenting tlie Fourth Part of his " Flora of Devon and Cornwall," the 
Author has to thank Mr. Thomas Q. Couch for a copy of his " Flora of Pol- 
perro ; " Mr. E. M, Holmes, of Plymouth, for a list of plants collected by him 
in Devon and Cornwall ; Mr. R. Frean of Plymouth for a list of plants 
noticed by him during a stroll in Cornwall ; Mr. H. T. Mennell, for a list of 
the plants observed by him in the neighbourhood of Newquay, during a brief 
sojourn there this summer, (and which he kindly prepared at the request of 
Mr. F. P. Balkwill) ; and Mr. T. Waghorn, for the names of a few plants 
which during a day or two spent at Padstow he saw in that locality. All 
these lists have been of service. Unfortunately some of them did not reach 
the Author until the sheets had nearly all passed through the press, other- 
wise they would have contributed many additional Cornish habitats. 
Suggestions, corrections, and information are invited, and will be grate- 
fully received. 
Bedford Street Plymouth, 
Oct. 4th, 1869. 
