HAECKEL (E.). Die Kadiolarien. 



Text & Atlas, 2 vols. Berlin, 1862. 



Fol. 



HAECKEL (E.). Biologic der Kalkschwamme. 



3 vols. Berlin, 1872. 4°. 



HAECKEL (E.). Das System der Medusen. 



Jena, 1879. 4°. 



HAGEN (H. A.). SynonymisiLibellularum Europsearum. 



Regimontii Prussorum, 1840. 8°. 



HAGEN (H. A.). Catalogue of Neuropterous Insects in 

 the British Museum. Part I. Termitina. 



London, 1858. 12°. 



HAGEN (H. A.). Smithsonian Miscellaneous Collections. 

 Synopsis of the Neuroptera of North America. 



Washington, 1861. 8°. 



HAGEN (H. A.). Bibliotheca Entomologica. 



2 vols. Leipzig, 1862-63. 8°. 



HAGEN (H. A.). Monograph of the North- American 

 Astacidse. Cambridge, 1870. 4°. 



HAGENOW (F. v.). Die Bryozoen der Maastrichter 

 Kreidebildung. Cassel, 1851. 4°. 



HALDEMAN (S. S.). Freshwater Univalves of the 

 United States (Physadee). Philadelphia, 1842. 8°. 



HALDEMAN (S. S.). History and Transformations of 

 Corydalus cornutus. Boston, 1848. 4°. 



HALDEMAN (S. S.). Elements of Latin Pronunciation. 



Philadelphia, 1851. 12°. 



HALLMAN (E.). Osteologie des Schlafenbeins. 



Hanover, 1837. 4°. 



HANCOCK (A.). See Alder (J). 



HANLEY (S.). Eecent Bivalve Shells. 



London, 1842-56. 8°. 



42 



