2 MYCETOZOA 



In the introduction to the first edition my father expressed 

 his thanks to those from whom he had received assistance, 

 and I here quote his own words : "I offer my grateful acknow- 

 ledgments to those through whose courtesy I have been enabled 

 to study the various herbarium specimens that have come 

 under my notice ; to the Director of the Royal Gardens at 

 Kew for giving me special facilities for investigating the 

 collection under his care, which includes Berkeley's precious 

 series, containing a great number of original types from India, 

 New Zealand, and America, that supplied Rostafinski with a 

 large part of the material introduced into the Appendix to 

 his Monograph. These types are to a large extent duplicated 

 in Broome's and Ravenel's collections in the British Museum. 

 To Professor Bayley Balfour I return my thanks for much 

 friendly assistance and for the opportunity of inspecting the 

 specimens in the Royal Herbarium at Edinburgh, including 

 Greville's collection and an almost complete set of type 

 examples supplied by the late Professor de Bary ; to Professor 

 van Tiegbem for the inspection of the collection of the Paris 

 Museum ; to Professor A. Blytt for an opportunity of examin- 

 ing the most important types in the Museum at Christiania ; 

 to Dr. Boerlage for giving me access to the Leyden collections ; 

 and especially to Graf zu Solms-Laubach for the privilege 

 afforded me of inspecting de Bary's invaluable collection at 

 Strassburg, containing a large proportion of the type specimens 

 referred to by Rostafinski in his original Monograph ; to Dr. 

 Rex, of Philadelphia, for a nearly complete series of the species 

 found in the United States of America, now represented in 

 the British Museum collection, and for the communication of 

 his views on a group to which he has devoted many years 

 of careful research. I am also grateful to my friend Professor 

 Farlow for many valuable specimens and useful suggestions ; 

 and to Professor Macbride, of Iowa, and Mr. Morgan, of Ohio, 

 for a fine series of the Mycetozoa from their respective districts ; 

 also to Dr. Haviland for specimens of great interest from 

 Borneo. Mr. Camm, of Smethwick, and Mr. Saunders, of 

 Luton, have supplied me with many scarce British species ; 

 and to Mr. Phillips and Mr. Massee I am obliged for kindly 

 entrusting me with their collections for examination." 



I should like to add my grateful thanks to those who, since 

 the publication of the first edition, have greatly assisted both 

 my father and myself by sending us specimens, as well as by 

 their correspondence. 



Dr. W. C. Sturgis, of Colorado Springs, has, for fourteen 

 years, been a fellow-worker on whose friendly co-operation 

 we could always depend ; Dr. Jahn, of Berlin, has generously 

 placed the results of his work on the life history of the group 



