MUSEUM OF COMPARATIVE ZOOLOGY. Ait 
Contributions to the Natural History of the Acalephe of North America. 
Pt. I. On the Naked-eyed Meduse of the Shores of Massachusetts, in 
their Perfect State of Development. Mem. Amer. Acad. Arts & Sci., IV. 
Pt. I. pp. 221-316, pls. 8. 1850. 
Contributions to the Natural History of the Acalephe of North America. 
Pt. II. On the Beroid Meduse of the Shores of Massachusetts, in their 
Perfect State of Development. Mem. Amer. Acad. Arts § Sci., IV. 
Pt. IL. pp. 318-374, pls. 8. 1850. 
(Correspondence of the ciliated lobes of Plutews and ambulacral rows of flappers 
of Pleurobrachia and Bolina. 
Contributions to the Natural History of the United States of America. IIT. 
pp. i-xi., 1-301, (1)-(26), pls. L-XIX. IV. pp. i-viii., 1-380, ()- 
(12), pls. L-XXXV. Boston, 1860, 1862. 
(Aurelia flavidula, Cyanea arctica, Pelagia cyanella, Coryne mirabilis, Clava 
leptostyla, Eudendrium dispar, Parypha crocea, Tubularia, Thamnocnidia, Hydrac- 
tinia, Laomedea, Millepora, larval stages of other Acalephs, passim.) 
Review of Agassiz’s Contributions to the Natural History of the United 
States of America. By J. R. Grezne. Nat. Hist. Rev., I. pp. 433-444. 
III. pp. 344-359, 479-497. 1861, 1863. 
Homologies of Radiata. Proc. Boston Soc. Nat. Hist., VIII. pp. 226-232. 
1862. 
(Comparison of young Acaleph, Polyp and Echinoderm, passim.) 
Methods of Study in Natural History. pp. i-vi., 1-319. Boston, 1863. 
(Development passim.) 
Alder, Joshua. 
Catalogue of the Zoéphytes of Northumberland and Durham. Trans. Tyneside 
Nat. Field Club, Il. pp. 93-160, pls. IIL-X. V. pp. 225-247, pls. 
VIII-XI. Newcastle-upon-Tyne. 1854-58, 1860-62. 
(Describes hydroids. ) 
A Notice of some New Genera and Species of British Zoéphytes. Rep. Brit. 
Assoc. Adv. Sci., Trans, Sect., pp. 90, 91. London, 1857. 
(Describes hydroids.) 
Descriptions of three new Species of Sertularian Zodphytes. Aya. Mag. Nat. 
Hist. [3], Il. pp. 353-356, pls. XIL-XIV. 1859. 
(Young of Plumularia halecioides resembles Halecium. Young of Halecium 
labrosum is parasitic. ) 
Report on the Zodphytes. 1862. Trans. Tyneside Nat. Field Club, V. pp. 
288-290. Newcastle-upon-Tyne. 1860-62. 
(Describes hydroids.) 
Descriptions of some new and rare Zoéphytes found on the Coast of Northum- 
berland. daz. Mag. Nat. Hist. [3], IX. pp. 311-317, pls. XIIL-XV. 
1862. 
(Development passim, hydroids.) 
