Part 29

pp. 44–6;

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pp. 57–8.

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——. Examination of water, 7th ed., pp. 35–7, P. Blakiston’s Son & Co., Philadelphia, 1915;

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pp. 64–7.

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LEVY, D. D. Ann. de l’Observatoire de Mont-Souris, 1883 et seq.

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LOVIBOND, J. W. A description of the tintometer with some remarks on its application to chemical analysis: J. Soc. Chem. Ind., Vol. 7, pp. 424–6, 1888.

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MALLET, J. W. Water analysis: Annual Report National Board of Health, pp. 189–354, 1882.

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MASON, W. P. Examination of water, 4th ed., pp. 85–9, John Wiley & Sons, New York, 1910;

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pp. 33–41;

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pp. 59–74;

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pp. 106–9.

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MCGOWAN, GEORGE. Kjeldahl process for the estimation of total nitrogen and (indirectly) of total organic nitrogen: Royal Commission on Sewage Disposal, Vol. 4, pt. 5, pp. 24–31, 1904;

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Bibliography 70: