XXXI1V PROCEEDINGS. 
It will be seen that in both series of observations the values of the 
modulus are large at the outset, diminish in value as the original stress 
is increased, reach a minimum value and thereafter increase with the 
original stress. The irregularity of the fourth and fifth determinations 
in the first series, is obviously due to the unusually long intervals of 
time which, as the first table, p. xxx, shows, intervened between the two 
pairs of observations on which they are based. The variation of Young’s 
Modulus with initial stress, the additional stress being roughly constant, 
would thus appear to be similar to that which was shown above to hold 
with respect to additional stress when initial stress is constant. 
It should be noted, with respect to all the above determinations of 
Young’s Modulus that the values found apply to the state of the cord 
immediately after the application of the additional stress, and in addition 
that the cord was subjected to torsion after each observation of length. 
Mr. Macdonald hopes to be able to continue the above investigation 
at a later date. 
The paper was discussed by Dr. Murpuy. 
James Baryes, Esq., B A., Dalhousie College, read a paper “ On 
the Conductivity, Specitic Gravity, and Surface Tension of Aqueous 
Solutions containing Potassium Chloride and Sulphate.” (See Transac- 
tions, p. 49.) 
Harry Piers, Esq., read a paper entitled, “‘ Observations on a Fish 
new tothe Fauna of Nova Scotia.” (See Transactions, p. 110.) 
Cuarues F, Lrypsay, Esq, read a paper “On the presence of Acid 
Sulphates in Solutions containing Copper Sulphate and Sulphuric Acid.” 
The paper was discussed by Proressors E. MacKay and MacGregor, 
and Dr. A. H. MacKay. 
A vote of thanks was presented to Messrs. Macponaup, Barnes and 
Lrnpsay for their communications. 
The following paper was read by title: ‘‘ Notes on Nova Scotian 
Zoology: No. 5,” by Harry Piers, Esq. 
The Council was authorized to receive as read by title, any papers 
that might be offered too late for this meeting. 
HARRY PIERS, 
Recording Secretary. 
