MANGANESE NODULES. 339 
No. 12.--MANGANESE NODULES FOUND AT 
ONYBYGAMBAH. 
By W. M. Douerty, F.C.S. 
(Read Monday, Junuary 10, 1898.) 
DuriNG a journey through dense scrubland in the neighbourhood 
of Onybygambah, on the Tweed River, my attention was frequently 
attracted by numerous dark-coloured nodules, or pellets, scattered 
about in some places in all directions. Some of these pellets were 
dark and glossy, and looked like seeds, others were of a dull-black 
colour, with no specially-marked characteristics. My first im- 
pression was that some of them were seeds, until closer observation 
proved them to be of earthy origin. They varied in size from about 
that of a pea to about that of a Barcelona nut. A small proportion 
were almost perfectly spherical, the majority, while tending towards 
the spherical, being irregularin shape. They were all soft enough 
to be easily divided with the teeth. Separate analysis of three of 
them showed the following composition :— 
Per cent. Per cent. Per cent. 
(1) (2) (3) 
Gangue wee 4 O0b ek OZ an! oo LO 
Fe, O, and Al, O, Peer at sas | LEO0 
MnQ,. a. ahr nen “LOcOUr sae. - 40°60 
Mg CO, ae Fy: DOO tous 2:60F ti 3°10 
Organic matter eee UZO0 2. ME ZS80r 5 “L000 
The occurrence of manganese, in the form now described, spread 
over a wide area is new to my experience, and is here merely 
recorded. 
No. 13.—NOTES ON THE CONSTITUTION OF GLUTEN. 
By F. B. Guturie, F.C.8. 
Read Monday, January 10, 1898. 
[Published in full in the V.S.W. Agricultural Gazette, April, 
1898, Vol. IX, Part IV.] 
No. 14.—NOTES ON SOME SIMPLE LABORATORY 
CONTRIV ANCES. 
By A. N. Pearson. 
(Read Monday, January 10, 1898. ) 
