G. R. Kaye, then, does not need to discuss and refute Peacock Just one abrupt statement seems to be addressed to the readers of the Arithmetic, in the 1907 article: 'The popular idea that the order of our (European) arithmetical notation is the more natural and convenient order is not correct, p.60

G. Kaye, Notes on Indian Mathematics Aryabha a 117: Units, tens, hundreds, thousands, tens of thousands, hundreds of thousands, millions, tens of millions, hundreds of millions, thousands of millions, these such succeeding place is ten times the preceeding, 1908.

G. R. Kaye, The Use of the Abacus in Ancient India, Journal of the Asiatic Society of Bengal

D. E. Smith and L. Karpinski, The hindu-arabic numerals, 1911.

F. Cajori, A History of mathematical notations, 1928.

D. Rî and L. Wilkinson, The Súrya siddhánta or, An Ancient system of Hindu astronomy, followed by the Siddhánta Siromani, 1861. On this collaboration see also Bayly, p.235

. Dvivedi, The Br hmasphu?asiddhh nta of Brahmagupta The Pandit, 1902. One can also note: S, Dvivedi, History of Mathematics, 1910.

R. Gupta and . Charan, Prabodh Chandra Sengupta (1876-1962), Historian of Indian Astraonomay and Mathematics, Gaa ita Bhh rat, vol.1, pp.31-35, 1979.

S. Ganguly, Alphabetical system of Aryabha a, XVII, pp.66-67, 1926.

S. Ganguly and . Kanta, Bhh skar chh rya's references to previous teachers, Bulletin of the Calcutta Mathematical Society, issue.2, p.1927

G. Nguli, On the modern place-value notation in the Aryabhatiyam, American Mathematical Monthly XXVII, 1927.

S. Ganguly, Notes on Indian Mathematics. A criticism of George Rusby Kaye's Interpretation, Isis, issue.12 1, pp.132-145, 1929.

G. Nguli, The Indian Origin of the modern Place-value arithmetical notation, American Mathematical Monthly, vol.XXXIX, pp.251-256, 1932.

. Kaye, Indian Mathematics' was initially to be published in Isis. The publication was temporarily stopped by the war, he thus decided to publish it in India, before having it re-published in Isis in 1919, as specified by an Editor's note in Ganguly's polemical review of Kaye's text in Isis, Notes on Indian Mathematics. A criticism of George Rusby Kaye's Interpretation, pp.132-145, 1929.

B. Datta, 1888-1958), a mathematician trained in Calcutta with a mystical bent 87 , had written 81 It is possible that this Sukumar Ranjan Das can be indentified with the cousin of the freedom fighter Chittaram Das (Aurobindo Ghosh's barrister) also called Sukumar Ranjan Das, who wrote a criticism of his cousin's opinion in, 1922.

S. Das and . Ranjan, Some Notes on Indian Astronomy, Isis, vol.14, issue.2, pp.388-402

S. R. Das, The Origin and Development of Numerals, part I and II, Indian Historical Quaterly, III, issue.2, pp.356-375, 1927.

S. R. Das, Astronomical Instruments of the Hindus, Indian Historical Quaterly IV, issue.2, pp.256-269, 1928.

S. R. Das, Seasons and the Year-beginning of the Hindus, Indian Historical Quaterly, IV, issue.4, pp.653-666, 1928.

S. R. Das, Hindu Calendar, Indian Historical Quaterly IV, issue.3, pp.483-510, 1928.

K. Das, The Origin and Development?op. cit, p.98

R. Das, For the concluding portion of this chapter, I am indebted to an article by Dr, p.371, 1926.

R. Gupta and . Charan, Bibhutibhusan datta (1888???1958), historian of Indian mathematics, Historian of Indian Mathematics, pp.126-133, 1888.
DOI : 10.1016/0315-0860(80)90033-6

B. Datta, . Datta, and . Bibhutibhusan, The present mode of expressing numbersAryabhaTa, the Author of the "GanitaThe Bakhhshh l manuscript, Indian Historical Quartely Bulletin of the Calcutta Mathematical Society, vol.3, issue.3, pp.530-540, 1927.

S. Datta and . Bibhutibhusan, The scope and development of Hindu GanitaEarly literary evidence of the use of the zero in India, American Mathematical Monthly, issue.21, pp.1-60, 1929.

A. Singh and . Narayan, On the Indian Method of Root Extraction, Bulletin of the Calcutta Mathematical Society (XVII), vol.3, pp.123-140, 1927.