104 DRS. J. A. BARKER AND P. CHAPPUIS ON A 



purposes of high range thermometry a scale deduced by the parabolic formul;i from 

 that of the platinum thermometer will suffice. In the present state of our knowledge 

 any attempt to improve on such a thermometric scale would be attended with such 

 uncertainties as would probably render it futile. 



XLIV. CONCLUSION. 



In conclusion, the authors are desirous of expressing their obligation to Dr. BENOIT, 

 Director of the Bureau International des Poids et Mesures, to Professor CAKEY 

 FOSTER, Chairman of the Kew Observatory Sub-Committee on Thermometry, and 

 to Dr. CHREE, Superintendent of the Observatory, for continued advice and help 

 throughout the whole of their work. For the loan of several pieces of apparatus 

 they are indebted to Professor SCHUSTER of Manchester, and to M. BROCA of the 

 Ecole de Medecine, Paris, and for help with the calculations to M. MAUDET and to 

 Mdlles. DE BAULLER and JUNOT, Assistants at the Bureau International, and to all 

 these they tender their sincere thanks. 



