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   Serum contains no recognisable hæmoglobin but is of a strong yellow colour.

Case XXVII.—Monabari. July 1908.

   Bengali Babu. Age 48.

         Native country.—Dacca.

         Length of residence in Duars.—18 years.

   History.—Until coming to Monabari 18 months ago did not suffer much from fever but
at Monabari has suffered constantly and severely. Had a previous attack of
Black-water Fever (Case XI) in October 1907. A week before present attack was
feeling feverish.

    9th July 1908.—6 A.M.—Took quinine 5 grains.

                       10 A.M.—Took another 5 grains.

                        2 P.M.—Passed hæmoglobinous urine. Temperature in the evening 105.

    10th July 1908.—Temperature in the morning 100. Passed very dark urine all day.

    Seen by us at 4 P.M. 10th July 1908.—Passing hæmoglobinous urine. Temperature 104.
Spleen enlarged. Yellow colouration.

   Blood.—Serum rosy red. Hæmoglobinæmia as shown by adding blood to citrate solution
and centrifuging equal in amount to that shown in the serum. Estimation of
amount of hæmoglobin showed this to be about equivalent to 3.75% solution
of blood.

   Blood—in solution of neutral red in 3% citrate showed some dark staining corpuscles.
A count gave 5 in 20 fields.

   Hœmolysis Experiments.—Vide Part IV, Chapter II, page 150.

   Urine.—An estimation of the amount of hæmoglobin gave :—