1870.] 411 [Stodder. 



end of the terminal segment of the body, our species agrees closely 

 with P. pedunculatus. It is of a decided yellowish tint, and .03 of 

 an inch in length. It is very active in its motions, and like the 

 Poduridas, which apparently respire through the skin, soon dies on 

 being deprived of moisture. 



Section of Microscopy. May 11, 1870. 

 Mr. E. Bicknell in the chair. Eight members present. 

 Mr. G. F. Childs was elected a member of the Section. 



Mr. Stodder exhibited a section of Tiger wood from Bra- 

 zil. The wood was very hard, many of the cells being 

 entirely filled with incrustations deposited in layers. The 

 medullary rays were quite small and also filled with a deposit 

 which could easily be dissolved by alcohol; the medullary 

 rays also contained large quantities of crystals, which were 

 formed more sparingly in the other portions of the wood. 

 He also exhibited living spores of JEquisetum. 



May 18, 1870. 



Yice President C. T. Jackson, m the chair. Forty-four 

 persons present. 



Dr. Thomas M. Brewer exhibited a nest of the Baltimore 

 Oriole {Icterus Baltimore) from Florida, composed of Span- 

 ish moss, (Tillandsia usneoides) verifying the position of 

 Audubon who has both figured and described the oriole's 

 nest as composed of this plant. He said it had since been 



