vi Proceedings. [October jisi, igii. 



Mr. Thomas Thorp, F.R.A.S., made a short communication 

 in which he suggested a new method for testing the curvature 

 of parabohc mirrors by tilting the mirror with a delicate tangent 

 screw so that each portion of the mirror is successively brought 

 into a horizontal position. 



Miss P. C. EsDAiLE, M.Sc.,reada paper entitled: "Intensive 

 Study of the Scales of three Specimens of Salmo salarP 



The paper is printed in full in the Memoirs. 



Ordinary Meeting, November J4th, 191 1. 



The President, Professor F. E. Wkiss, D.Sc, F.L.S., 

 in the Chair. 



A vote of thanks having been given to the donors of the 

 books upon the table ; and Mr. C. L. Barnes drew attention to 

 the ' Catalogue of Serials in the Library ' now on sale. 



Mr. R. F. Gwyther, M.A., communicated an abstract of a 

 paper by Mr. Lancelot V. Meadowcroft, B.A., ALSc, 

 entitled, "A Geometrical Treatment of Geodesic 

 Torsion." 



The paper is printed in full in the Memoirs. 



Dr. Alfred A. Mu.mford, Medical Officer to the Governors 

 of the Manchester Grammar School, read a paper entitled, 

 " Observations upon the Improvement of the Physique 

 of Manchester Grammar School Boys during the last 

 thirty years." 



The paper is printed in full in the Memoirs. 



Ordinary Meeting, November 2Sth, 1911. 



The President, Professor F. E. Wkiss, D.Sc, F.L.S., 

 in the Chair. 



A vote of thanks was accorded to the donors of the books 

 upon the table. 



