46 Journal of the Mitchell Society [June 
cens, A. cinerea Bres., A. nitida Fr., A. vaginata Fr., A. volvata 
Pk., A. farinosa Schw., A. mappa Fr. 
The species A. verna, virosa, and phalloides were considered 
as not distinct. 
Amanita junquillea Quel, was illustrated by photographs and 
specimens and compared with the European forms. The Ameri- 
can A. russuloides Pk. was referred here, also the European spe- 
cies A. amici, adnata, and vernalis. Photographs and specimens 
had been seen by Bresadola and Boudier w’ho verify this conclu- 
sion. Specimens of the European form had also been examined. 
Amanita cinerea Bres. was shovm to include A. spreta Pk. 
A. volvata w r as shown to be the plant referred by Quelet and 
Bataille to A. coccola Scop. It was also considered the true A. 
agglutinata of Curtis, and A. baccata as understood by Bresadola. 
Photographs of many forms of A. solitaria and its allies were 
shown illustrating the difficulty of successfully defining species in 
this much confused group. 
Distribution and Migration of Warblers at Raleigh. C. S. Brimley 
of Raleigh, N. C. 
An Adjustable Armella'i'y Sphere — Newly Designed , J. F. Lanneau, 
of Wake Forest College, N. C. 
This paper dealt with a unique piece of apparatus — a light, 
symmetrical mechanism, built by Wm. Gaertner & Co., Chicago, 
after Professor Lanneau ’s design — for class-room use in Wake 
Forest College. 
Its special feature is the placing of the horizon plane and ver- 
tical circles within the celestial circles, and the two concentric 
systems, mechanically independent , allowing of the real eastward 
rotation of the former, or of the apparent westward rotation of 
the latter. 
SOME ILLUSTRATIONS. 
1 . An alluminum ball at the centre represents the sun ; and 
by a simple device a smaller ball revolves around it eastward in 
the plane of the ecliptic, representing the earth’s annual 
motion . 
