6. ‘ Education in London in 1931." A complete summary review 
of Educational Institutions, &c., prepared under the Editorship of 
A. Clow Ford, M.B.E. Demy 8vo, paper, 56 pp. 1s. 6d. 
7. ‘Mathematical Tables,’ Vol. I. Circular and Hyperbolic 
Functions, Exponential Sine and Cosine Integrals, Factorial 
(Gamma) and Derived Functions, Integrals of Probability Integrals. 
Demy 4to, stiff cloth, xxxv-+72 pp. 10s. (postage, 3d.) 
(Further particulars of this publication will be sent on application.) 
8. ‘ Stresses in Overstrained Materials.’ The Report of a Com- 
mittee, containing papers on An Investigation of the Hardness of a 
Steel Tube along certain Luders or Probert Lines, by Sir Henry 
Fowler ; Changes in Indentation Hardness of Test-pieces resulting 
from varying amounts of Deformation or Plastic Flow during the 
application of Tensile Stress, by Sir Henry Fowler; The Phe- 
nomenon of Tensile Yield in Mild Steel and Iron, by J. G. Docherty 
and F. W. Thome; The Upper and Lower Yield Points in Steel 
exposed to non-uniform Distribution of Stress, by Prof. G. Cook ; 
Plastic Strain in relation to Fatigue in Mild Steel, by Prof. B. P. 
Haigh and T. S. Robertson B.A. Reprints, No. 29. 
Demy 8vo, paper. 1s. 6d. 
9. ‘ Educational Training of Boys and Girls in Secondary Schools 
for Overseas Life.’ The final Report of a Committee. Demy 8vo, 
paper, 34 pp. 6d. 
Note.—Items Nos. 4, 5, and 9 above are included in the Annual Report, 1931, 
and members entitled to that Report may also obtain No. 8 on application, 
without charge. 
The prices stated are post free. 
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