204 THE MICROSCOPE AND ITS REVELATIONS. 



Opalines, et Gregarines, observes dans les Hebrides " (Geneva, 1861); "Recherches 

 Anatomiques sur les Oligochetes " (Geneva, 1862); " Beobachtungen iiber Anato- 

 niie und Entwickelungsgeschichte Wirbelloser Thiere an der Ktiste von Norman- 

 die" (Leipzig, 1863); and "Les Annelides Chetopodes du Golfe de Naples" (Ge- 

 neva, 1868-70); the Monograph of Dr. Ehler's, " Die Borstenwiirmer (Annelida 

 Chsetopoda)," 1864-8; and lastly, Dr. Macintosh's "Monograph of the British An- 

 nelids," now in course of publication by the Ray Society. 



