308 R. T. BAKER AND H. G. SMITH. 
References to Australian Mannas will also be found at :— 
1. Archiv. der Pharm., 196-7, (1872.) 
2. Yearbook of Pharmacy, 1871, 188. 
EXPLANATION OF PLATES. 
PLATE XXt. 
Sketch of the “ Blue Grass,”’ Andropogon annulatus, Forsk. 
Figs. 1, 2 and 3—Stages showing the development of the manna on 
the stems. (Reduced to 3 size) 
Fig. 4—Section of 3, showing cavity containing excrement of insect, 
(Redu 
ced to & size) 
PLATE XXII. 
Fig. 1—Manna under 4} nagartanse 
Fig. 2—Mannite crystals Cea er pee ee 
Fig. 3—Cells showing mode of multiplying. X 450 diam. 
Fig. 4—Showing production of cells on a chain or linear manner. 
iam. 
Fig. 5—Later growth of No. 4: 
Fig. 6—Club shaped body or aggregation of cells with sporules escap- 
ing. X 450. 
Fig. 7—Sporules in “ strings of beads” found with No.6. X 450 diam. 
Nos. 3, 4, 5, 6 and 7, all in a solution of cane sugar. 
