120 



by the publication of Part I. in the Pakeontographical Society's 

 volume for 1865, has, after an interval of thirty years, been com- 

 pleted in the Society's volume for 1895. The authorship of the 

 earlier part was by Messrs. Rupert Jones, W. K. Parker, and H. 

 B. Brady. Of this distinguished triad only the first-named re- 

 mains with us to-day. Prof. Rupert J ones, whose name will ever 

 stand in the first rank of students of the Foraminifera, and who 

 has nearly completed his half century of observations in this de- 

 partment of study, takes the leading position in the completion of 

 the monograph. He has been ably assisted by H. W. Burrows, C. 

 I>. Sherborn, F. W. Millett, R. Holland, and F. Chapman, each 

 of whom brings a special knowledge to bear on the branch of the 

 work entrusted to him. It is significant of the progress the 

 science has made in the interval that no less than thirty-one of 

 the specific determinations made in Part I. have had to be 

 corrected in their classification in the Part just published. Mr. 

 Frederick Chapman, F.R.M.S., who either independently or as 

 collaborator with other well known naturalists, has greatly en- 

 riched our knowledge of the British fossil Foraminifera, has for 

 more than ten years been engaged on a monograph of the Foram- 

 inifera of the Gault, of which nine Parts have already been pub- 

 lished and about 250 species figured. Mr. Chapman's patient 

 and exhaustive labors are all the more valuable in that he has 

 worked out the foraminiferal fauna of the Gault in relation to 

 the zonal distribution of the species. 



Deep sea dredging for scientific purposes has, of late years, 

 been prosecuted by many of the leading nations of the world. 

 An expedition of this kind was carried out by the U.S. Fish 

 Commission steamer "Albatross" in 1891, under the scientific 

 control of Alexander Agassiz, the able Director of the Museum of 

 Comparative Zoology at Harvard College. The ground investigated 

 was an unexplored region of the ocean floor off the West coast 

 of Central America, from the Galapagos on the Equator to the 

 Gulf of California as the northern limits of the explorations, and 

 has yielded material for a large number of monographs in eluci- 

 dation of the rich and interesting fauna 3 then obtained. The 

 Foraminifera were intrusted to Axel Goes, the eminent Swedish 

 naturalist, who has worked out with distinguished ability the 

 very rich foraminiferal material obtained in these dredgings, and 

 has added to our knowledge a large number of new forms. Goes* 

 "Work forms the XX Bulletin of the series, and was published in 

 1896. 



One of the most valuable contributions to our subject within 

 recent years is that of Dr. R. D. M. Yerbeek and R. Fennema 

 in a joint description of the Geology of Java and Madoura* r 



* Description geologique de Java et Madoura. Tomes II. Amsterdam r 

 1896. 



