I.8.C. 8 Proce. of the Asiatic Soc. of Bengal. [N.S,, XVIII, 
seventy had lived seventy-one years and a lot of miles, if we 
had travelled so far that the messenger took a year to reach u 
rushing trains or whirling discs are always assumed as losing 
time in hypothetical] experiments by Einstein and those follow- 
ing him. 
Now I must not be understood for a moment as presuming 
to condemn Einstein’s theory or theories in their original 
tradictory, and it violates our fundamental concepts of time 
and space. These latter, I venture to contend, are not the 
conceptions of theory as claimed b Dr. Norman Campbell,! 
but scientific instincts which have developed along with our 
He sy: faculties, as trained by and in the pursuit of scientific 
ruth. 
To go beyond this in criticism would be distasteful and 
dangerous, the more so if one bears in mind the excellent 
advice of Dr. Whitehead, made 4 propos of the Differential 
Calculus and the Way it was launched to the accompaniment 
of much ingenious but imperfect explanations. He has 
written?:-— 
8 this possibility of being right, albeit with entirely 
as to what is being done that so often makes 
Substitute « Relativity ” for “ Differential Calculus” and 
‘Space and time” for « infinitely small,”’ and the above quo- 
tation might he read word for word in the present perplexity. 
ing my remarks on this subject, I must say 
< 
ie pe Saege e 
Se Sari a NM 
’ Nature, Relativity Number, 17th Feb., 1921, p. 804. or 
Introduction to Mathematics,” Home University Library, p. 227+ 

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thr Sage Ae ee oe 

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