374 Forty-second Report on the State Museum. 



him were refused acceptance by most of the students and authors 

 on Brachiopoda, and ouly within a few years are we learning to 

 appreciate the knowledge and acuteness of observation of this 

 Russian author, and to adopt his proposed generic terms. 



The work of Pander has been too little known among western 

 students to have received the attention due to its merits. 



This appreciation of the then accepted condition of this class 

 of fossils and a recognition of the incompleteness of his own 

 work as presented in volumes III and IY of the Palaeontology of 

 New York, prompted the author to propose a supplemental volume 

 which should be mainly devoted to the illustration of generic 

 forms. The work in preparation for this volume was begun imme- 

 diately after the completion of volume IV ; but as the author's 

 duties required the contemporaneous preparation of volume V, it 

 was impossible to give the proper attention to the Brachiopoda. 



Nevertheless, the plan was laid out and the plates were arranged 

 and numbered with figures sketched in outline where no drawings 

 existed. 



The original plan as thus indicated embraced something over 

 eighty plates of illustration, of which twenty-eight had already 

 been lithographed before the end of 1878. The last plates of the 

 Brachiopoda done previous to 1888 were placed in the hands of 

 the lithographer in July 1878. Besides these there were original 

 drawings already made for a considerable number of plates beyond 

 those lithographed. These drawings have been only in part used 

 in the arrangement of plates up to the time of writing this Report. 



The necessity of pushing forward the work for volume Y, which 

 was originally planned to embrace the Lamellibranchiata, Gastro- 

 poda, Pteropoda and Cephalopoda, precluded any farther attention 

 to the Brachiopoda at that time. Volume V, part ii, was pub- 

 lished in 1879.* The work on the Lamellibranchiata, which 

 had been progressed, was continued, so that before the end 

 of 1881 eighty plates had been lithographed. At that time 

 there had also been lithographed thirty-three plates of the 

 Corals and Bryozoa, now constituting a part of volume VI, 

 together with eight plates of Crustacea, now included in volume 

 VII. A considerable part of the manuscript descriptions of the 

 Lamellibranchiata had also been prepared, but as the printing 



*The reason for the precedence of part ii over part i has been explained in the 

 preface to the former volume. 



