4 
37 bis.—Descriptions of two new Genera of Pycnogonida (4 p., cuts), 
March, 1878. By E. B. Wilson. 
38.—Descriptions of new Genera and Species of Isopoda (7 p ), 1878. 
By O. Harger. 
Fresh-water Invertebrata. 
(See also Brief Cont., Nos. 3, 17, 37.) 
Observations on Phyllopod Crustacea [Branchipide], with descrip- 
tions of new Generavand Species (18 p., cuts), 1870. 
Notice of Invertebrata dredged in Lake Superior, in 1871, by the U. 
S. Lake Survey. By 8S. L Smith and A. E. Verrill (7 p.), 1871. 
Review of Nicholson’s Contributions to a Fauna Canadensis, 1873. 
Reports on Fresh-water Invertebrata of N. America: Crustacea, By 8. 
I. Smith; Leeches, by A. E. Verrill; Invertebrata of L. Superior, 
by 8. L Smith ; Food of Fishes, by 8. I. Smith (72 p., cuts, 3 pl.), 
1874. 
Report upon Fresh-water Leeches of Nevada, Utah, Colorado, &ce. 
(4to, 11 p.), 1875. ‘ 
Miscellaneous. 
New Fluid for preserving Natural History Specimens (2 p.), 1866. 
New preservative Solution and mounting insects in glycerine-jelly 
(3 p.), 1866. 
The Laws of Reproduction in Cattle, ete. (Abstract of two lectures, 
32 p., cuts), 1869. 
The External and Internal Parasites of Man and Domestic Animals 
_ (140 p., 84 cuts), 1870. 
Supplement to the same. 
Description of Sclerostoma pinguicola (2 p., cut), 1870. 
Glycerine for preserving Natural Colors of Marine Animals, 1869. 
The Rules of Zoological Nomenclature (20 p.), 1869. 
Additional Note on the Rules of Nomenclature (2 p.), 1872. 
OrnerR Avutuors: MWiscellaneous. 
Turnbull, F. M., Anatomy and Habits of Nereis virens (15 p., 3 pl ) 
Dana, J. D. and Pickering, C., Description of Caligus Americanus 
(41 p., 3 pl.), 1838. 
/Whiteaves, J. F.. Dredging Operations in Gulf St. Lawrence 1874. 
Girard, C., American Bibliography, Zoological, Botanical, Geological, 
for 1851, (19 p.) 
Bradley, F. H., List of Geological Reports of State Surveys. 
16. 
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Any of the above pamphlets will be sent by mail on receipt of price. 
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