iL iL4! PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
The mounting and extraction of Foraminifera can be accomplished 
In many ways. An excellent description of such work is to be found 
in Chapman’s The Foraminifera (chap. xix, pp. 291-326). It is, 
however, rather expensive and tedious to mount on separate cover 
under glass every species recognized, and I therefore used the follow- 
ing method: The specimen to be preserved was fastened with strong 
glue upon a slip of heavy white paper which had been blackened 
with india ink where the specimen was to be mounted. On this slip 
of paper was put also the number and description of the dredging sta- 
tion and the name of the species mounted. Two specimens upon dif- 
ferent surfaces are generally all that is required for future use, 
although it 1s desirable to have a side aspect of the test, and this re- 
quires some skill to keep the form in place until it 1s permanently 
fixed. If in future these forms are wanted for other purposes they 
can readily be detached by strong vinegar and washed quickly in 
alcohol and water. A wet brush enables one to pick up the tiny 
shells with considerable rapidity and to hold them in any desired 
position while studying them. 
Only brief descriptions of species have been given in most instances 
in this report, but new forms and also some of the more important 
known types have been discussed quite fully. The new forms are 
bottled separately and marked “ Type,” and have been deposited in 
the U. S. National Museum. While I have not separately mounted 
from every bottle of dredgings each species as it repeatedly occurred, 
every form identified has been selected and mounted by the method 
described, and in many instances a single form has been prepared 
egain and again as particularly instructive and characteristic. In 
the arrangement of the classification of species given in this paper 
we have followed the order adopted by the British authorities on 
the Rhizopoda, W. K. Parker, T. R. Jones, W. B. Carpenter, and 
amended by H. B. Brady and the later writers, C. D. Sherborn 
and Frederick Chapman. 
The first reference of each form listed is that of the original descrip- 
tion of the species. Much valuable information has been obtained 
from the exhaustive monographs by Prof. H. B. Brady in the Chal- 
lenger Report, and by Dr. Alexander Goes on Arctic and Scandi- — 
navian recent marine Foraminifera’, and the excellent report on 
recent Foraminifera by Dr. James M. Flint’. Mention should be 
made also of such invaluable works as Williamson’s Recent Foramini- 
fera of Great Britain (Ray Society, 1858) ; Brady, Parker, and Jones 
on some Foraminifera from Abrohlos Bank (1888) Chapman’s The 
4 Kongl. Svensk. Vetenskaps-Akademiens Handlingar, XXV, No. 9, Stockholm, 
1894. 
5 Report of the U. S. National Museum for 1897. 
