PREFACE 



THIS volume contains three papers : two on Nemerteans, by 

 Dr. Wesley R. Coe, Assistant Professor of Comparative Anat- 

 omy at Yale University, and one on Bryozoa, by Miss Alice 

 Robertson, of the University of California. Doctor Coe's first 

 paper is based on the Nemerteans collected by the Harriman 

 Expedition, mainly by the author himself, and was published in 

 the Proceedings of the Washington Academy of Sciences in 

 March, 1901 ; the second, which embraces additional species, 

 including those from the coast of California, is here published 

 for the first time. Owing to the very thorough manner in which 

 these animals are treated, the present volume is sure to be a 

 valued contribution to the knowledge of a little known group. 



C. HART MERRIAM, 



Editor. 



WASHINGTON, D. C. 

 December 24, 1903. 



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