Pi.. II. 
l)r. II. Va.\ HkL'KCK, pilot. 
J.M.\ks, pliototyp. 
1-3. Ampiiipleur-v pellucida Ki'jTz. — 4. A. Lindiieimeri Grun, 
5. SuRiRELL.v Gemm.v Eiir. — 6. Pleurosigma angulatum \V. Sm. 
7-8. Van IIeurckia crassinervis Breie 
C. Zeiss. Object. 2,5 N.,\. 1,0.3 — Ociil. 12 — Cond. KA. 1,60. 
Liimiere solaire inonochroimiticpie. 
Oct.-Nov.-Dec. 1889. 
