213 
ORDINARY MEETING, June 3, 1867. 
Capt. E. Gardiner Fishbourne, R.N., C.B., Hon. Treasurer, 
in the Chair. 
The minutes of the previous meeting were read and confirmed. 
The Rev. Walter Mitchell, M.A., vice-president, then delivered a 
lecture on “ The General Isomorphism of all Crystalline Bodies, and the 
Relations of all Forms of Crystals to those of the Cubical System,” being an 
outline of a paper on this subject which will be hereafter published in the 
Journal of Transactions. 
[Mr. Mitchell’s paper has now been partly prepared, and it was expected 
that the first part of it would appear in the present number of the Journal; 
but owing to the tables of minute figures, and the diagrams illustrating the 
paper, which will delay its passing through the press, I have deemed it 
advisable not to keep back this number of the Journal any longer, but 
rather to defer Mr. Mitchell’s important Memoir, which will be published 
when completed. 
The subject was one that scarcely admitted of extempore discussion ; but 
the following observations were made upon the occasion when Mr. Mitchell’s 
lecture was delivered ; and the remarks of Mr. Charles Brooke, F.R.S., now 
a vice-president of the Institute, and of Professor Morris, F.G.S., of Uni- 
versity College, London, will be read with interest. 
In the course of his lecture, Mr. Mitchell had especially referred to the 
valuable labours of Mr. Brooke’s father in the same field, as well as to those 
of Haiiy, and others, who had endeavoured to discover the true laws of 
crystallography.— J. R., Ed. February, 1868.] 
The Chairman. — You will allow me to give our unanimous thanks to Mr. 
Mitchell for his very interesting lecture. Few of us can follow him, I am 
sure, throughout the whole of it, but we can all follow him so far as to see 
that there is a manifest design in these laws of crystallography, and that 
there must be a very large amount of increasing credulity among those who, 
in the face of such knowledge, still deny both a design and a Designer in 
nature. It is quite impossible that such laws, ranging themselves so indis- 
putably and clearly under one great law, can be considered accidental, and as 
Q 
