Acknowledgments 



In the course of this study we have received invakiable assistance 

 from many sources. Those in charge of the several herbaria which 

 we examined deserve special thanks, since with(jut their cooperation 

 the work could not have been carried on. P^or permission to use the 

 maps we extend our thanks to Mr. Ernest L. Sherman, Director of 

 the State Planning and Development Commission. We wish to ex- 

 press our warm appreciation to Mr. Henry Clapp, also of the Com- 

 mission, for his assistance in arranging technical details concerning 

 the maps and for his continued encouragement and help through the 

 years in collaliorating with the senior author in the investigation of 

 the New Hampshire flora. 



The following ])ersons have given help in supplying us with 

 knowledge of interesting botanical localities or through their active 

 participation in field investigations : Dr. Robert W . Harrington of 

 Vero Beach, Florida; Prof. Stuart Harris of Boston University; 

 Mr. Stanley B. Krcjchmal, formerly of the State Fish and Game De- 

 partment ; Mr. Roger Leighton, County Forester (jf StratTord 

 County ; Mr. Alexander Lincoln of Meredith ; Prof. Fred Page of 

 Dartmouth College ; Mr. Radcliffe Pike of the Department of Hor- 

 ticulture, University of New Hampshire ; Dr. Maurice Provost of 

 Vero Beach, Florida ; Mr. Tudor Richards. County Forester of 

 Cheshire County; Prof. John Stearns of Dartmouth College; Mr. 

 Robert Varney of Barrington ; Prof. Marian Mills of Durham; and 

 Prof. K. W. Woodward of Durham. 



We are indebted also to the following recent students in botany 

 at the University of New^ Hampshire wdio have made contributions 

 to our floristic knowledge of New Hampshire woody plants : Miss 

 Marjorie Drowne, Robert Fancy, Miss Alartha Gale, Dominic P. 

 Gangi, \\^illiam Glazier, and Mrs. Jeanette Straughan Perreault. 



In particular w^e would like to acknowledge our indebtedness to 

 the distinguished author of The 1 'oscular Flora of Coos County, 

 Prof. Arthur Stanley Pease, whose book has l)een a constant and 

 valuable source of information. Moreover, Professor Pease has guid- 

 ed us to interesting localities on several memorable occasions. He 

 has also kindly examined critically that portion of our county check 

 list dealing with Coos County and has made a number of welcome 

 suggestions. 



Acknowledging freely all the help given us by these and others, 

 we wish also to make it clear that we assunic all responsibility for 

 errors or omissions in this work. 



