146 Attierican Quarterly Microscopical Journal. 



5. Pringsheim ; Morphologic et etude systematique des algues. 

 (Ann.des Sc. Nat., Bot. tome XL, 1859). 



6. Pringsheim ; Weiter Nachtrage zur Morphologic und Sys- 

 tematik der Saprolegnieen (Jahrbiicher f. Wis. Bot., Bd. IX.. Heft 2. 



1873)- 



7. Sachs; Text Book of Botany, 



8. Thuret ; Recherches sur les Zoospores des Algues (Ann. des 

 Sc. Nat., Bot. 3me. ser. tome XIV., 1850.) 



9. Reinke, J.; Uber de Geschlechtsverhaltnisse von Saprolegriia 

 f?ionozca (Archiv f. Mikroskop. Anatomie, Bd. V., pages 183 — 191). 



[The author's corrected proof of the first part of this article was re- 

 ceived too late to permit any changes. We therefore add the follow- 

 ing errata : 



Page 19, line 32 for " lanceolatus" read "lateralis." 

 " 21, " 17 for uniform " read "reniform." 

 " 21, " 19 for "simple cilium " read " single cilium." 

 " 22, " 5 for "several modes" read " sexual mode." 

 " 23, " 4 for " is " read " in." 

 " 23, " 29 for " another " read "a mother." 

 " 25, " 13 for "out" read "only." 

 " 26, " 39 for " unsexual " read "asexual." 

 " 27. " 17 for "germs " read "genus " — Ed.]. 



THE SIMPLEST FORMS OF LIFE. 



BY B. EYFERTH, 



{Translated from the German for this Journal, with additions^ 

 Apart from the purely scientific interest attached to the 

 lower forms of life, the beauty of their appearance under the 

 microscope, their graceful motion and wonderful adaptation 

 to their surroundings, make them objects worthy of careful 

 examination. To those who have an intimate acquaintance 

 with these lower types the classification here presented will 

 not seem entirely satisfactory. However, upon this subject 

 writers will not all agree, and if the author has placed certain 

 forms among animals which we believe to be plants, we can- 

 not criticise him very harshly. 



The object in presenting this classification is simply to place 

 before those of our readers who desire some simple classi- 

 fication of common organisms, a plain and easily followed 

 guide by which the specimens they find may be named. 



The parts in brackets [ ] are added by the translator. 

 Dimensions are given in terms of m m. 



