vi TEXT-BOOK OF PALAEONTOLOGY 



preface, ami alsu in footnotes at the end of the several chapters. Their 

 names aiv enumerated In-low in tlie order of their respective sections, and the 

 Kditor begs to express at this time a sense of his profound appreciation of the 

 services that have been so generously remieieil. For the many personal 

 courtesies extended, he would return to each of them his sincere and hearty 

 thanks. 



LIST OF COLLABORATORS 



Mr. CHAKU-X WACHSMITII, i'n'in>iil,-<t, J!l*tai'<l,;i. 



Mi. \V. IV.R.'v SI.\I>KX. Asterozoa, !:<}, inozoa. 



Dr. GEORGE JKXXIN;S HIM.K, Vermcs. 



Mi. KHWARD O. ULRICH, Bryozoa, OstntroJu. 



Mr. CHAKI.KS SI'HIVIIKHT, Unichiopoda. 



Dr. WILLIAM H. DALL, Pelecypoda. 



Prof. HENRY A PILSBRY, Gastropoda. 



Prof. Ai.i'in;rs HYATT, Cephalopoda. 



Prof. CHARLES E. BEECHER, Trilobita. 



Prof. JOHN M. CLARKE, Eucrustacea (pars), Acerata (par*). 



Prof. JOHN S. KINGSLEY, Eucrustacea (pars), Acerata (pars). 



Prof. SAMUEL H. SCUDDER, Insecta. 



The Editor is also greatly indebted to his friend Dr. John C. Merriam, 

 who undertook the translation of the entire chapter on Mottu$ca, a very 

 laborious work. Dr. Merriam's assistance has been further enlisted in the 

 translation of the second volume, which will be devoted exclusively to the 

 Vertebrates. Dr. August F. Foerste was kind enough to furnish a transla- 

 tion of the chapter on Insects, and various friends have assisted in correcting 

 proofs. For the compilation of the index the Editor is indebted to Miss 



Elizabeth B. Bryant, a former student of his at Radcliffe College, and to 



lis brother, Mr. David P. Eastman. 



CHARLES R. EASTMAN. 



HAKVAI:I> UNIVKKSITY, 

 S.*litcmJbcr 15, 1899. 



