PROCEEDINGS 1841—1848. 173 
Could Mr. Chaiitrell be spurred up ; ^Ir. Thorp says flatly he 
has not time, as he has the Agricultural Society's Report to prepare, 
and he wont be at the trouble to correct his former papers for the 
press. An evening meeting seems out of the question. 
I called on Mr. Holmes, Draper, School Close, to-day, to see 
his lamp, in hopes it might do to exhibit, but I fear it is only Upton 
and Roberts over again, without any security. He has promised to 
see you with it, if you think it will do to exhibit, be good enough to 
let me know. It might be laid on the table to look at, and he might 
explain it briefly, without our advertising it. Our brethren at 
Manchester are I think ahead of us now, they seem to have no 
difliculty in getting papers. We will settle about the museum when 
we meet at York. 
I am, my dear Sir, yours sincerely, 
Thomas Wilson. 
A meeting of the Local Committee was held at Leeds on May 
19th, and it was decided amongst other things to invite the Rev. 
Theophilus Barnes to take the chair, which in due course he accepted ; 
the meeting was held early in the following month at the Philo- 
sophical Hall, Leeds. The Rev. Chairman gave an interesting 
address on the objects and prospects of the Society. Papers were 
read by Mr. Charles Todd, of the firm c»f Shepherd and Todd, makers 
of locomotive engines at Leeds, on experiments illustrating the 
relative strength of Pig Iron, of various qualities, which gave rise to 
an important discussion of the question. Mr. Henry Hartop "On 
the presence of Titanium in Blast Furnaces," exhibited a large 
specimen of cubes of Titanium, with crystals of iron in contact with 
it, obtained from a Welsh Blast Furnace. Mr. Hartop also drew 
attention to a Slab of Ironstone, embedded in which were numbers of 
mussels (anthracosia), which had apparently been suddenly fixed in 
the matrix whilst in a feeding position, tliat is with the open margins 
of the shell upwards, whilst in another iron seam about one hundred 
yards deeper, an immense number of mussels were found extended on 
their sides with every appearance of having been floated into position 
when dead. Mr. Hartop had living specimens of the pond mussel for 
comparison which seemed to confirm the truth of his observation. 
