----------------------------------+-----------+----------- | No. 1. | No. 2. +-----------+----------- | Parts per million. ----------------------------------+-----------+----------- Free ammonia | 0.018 | 0.018 Albuminoid ammonia | 0.027 | 0.037 Nitrogen as nitrates and nitrites | 0.0246 | 0.0442 Oxygen absorbed in fifteen minutes| 0.0396 | 0.0672 Oxygen absorbed in four hours | 0.1056 | 0.1744 Chlorine | 0.10 | 0.10 Total solids at 105° C. | 30.8 | 12.0 Solids after ignition | 30.8 | 8.0 Loss on ignition | None. | 4.0 Phosphates | None. | None. ----------------------------------+-----------+----------- The authors go on to say: "From the above data we may unhesitatingly conclude that the glacier water is one of great organic purity. The samples are not identical, due no doubt to the fact that they were collected twelve days apart, and probably from different parts of the foot of the glacier. Both analyses, however, show that, judged by the standards used in the diagnosis of ordinary potable waters, it is a water possessing a high degree of purity, and one perfectly wholesome and eminently suited for drinking and household purposes. As received, both samples were quite murky, almost milky, in appearance. On allowing them to stand, perfect subsidence took place, leaving the supernatant water colorless and brilliant. A microscopic examination of the sediment showed it to consist of very fine rock matter, chiefly fragments of quartzite.