The age-herald., 1897-11-24
No. 1904 Second Avenue
Only Exclusive Carpet House =. in Alabama =.

several weeks l3ter several more SaHl- ples-in larger proportions-wer sent Prof. Ross. One was taken from the Cahaba supply reservoir, and the other from the hydrans in The Age4H Herald off, flee
 The following response was received:
 SECOND ANALYSIS.
 State Chemical Laboratory, Agricultural and Mechanical College,
 Auburn, Ala, Nov g, 1897. Analysis of waters forwarded by MT. D. w. Barrett, Birmingham, Ala.
 Sample No. 1, from settling basin of Birmingham Waterworks company
 Grains
 Per Gallon. Total solid matter. ... ... =. ...716 Org anic and volatile matter Qoss on Total suspended matter.... ...022 Organic matter in suspension. ....0.12 Chlorine. ......o.4o
 Parts
 Per Million Nitrogen as free ammonnia. .....0094 Nitrogen as albumoid ammonia. 01O7 Oxygen consumed in oxidizing or ganic matter... ...lzo
  Herald office:
 Grains
 Per Gallon. Total suspended natter. .....I17 Organic matter in suspension... ...O.SS Pants
 Per Million. Nitrogen as free ammonia. .. -. ...0069 ,sl Oxygen consumed in oxidizing or ganic matter... ..'..l.oo
 B. B. ROSS. THE CHEMISTS EXPLANATION. MT. E. W. Barrett, Birmingham, Ala. Dear Sir:-I enclose herewith the re- suits of my analysis of the two samples of water forwarded by you few days since.
 Both samples of water are much more free from suspended matters than the sample previously forwarded by you, but sample No. still ccn-tatns quite an ap- preciable amount of suspended particles which were in a flocculent form when the water reached me, and on this ac- count the water showed Nbtle turIbidity. The proportion of solid matters is not above that which we frequenly find in most of our ordinary sources of water supply, and the amount of chlorine IS also well within the limits characteristic of good potable waters in this section. The amount of oxygen consumed in oxIdizing the organic matters contaaned in waters is frequently valuable index (considered in connection with other data obtained from the analysis) in determin- ing the purity of waters, and in the case of both of these waters the oxygen con- sumed is not sufficiently high to cause them to be regarded with suspicion, so far as this particular test of purity Is concerned.
 In sample No. the solid matter in suspension is 1.17 grains per gallon, of which three -fourths is destroyed on ig- n1tion, showing that a very large pro portion of the suspended matter is eff an organic character.
 Our analysis shows in this sample an amount of albuminoid ammonia some- what in excess of that usually found in good potable waters, but the fact that this test was made without previous fii- t=ration of the water, in connection with other tests which we have malie, indi- cates that the presence of the suspended organic matters referr5 d to above IS re- sponsibJe fer a considerable proportion of the albumincfd ammonia reported in this sample.
 An efficient system of Alteration will not only have the effect of freeing the water of suspended matters, but will at the same time very materially reduce the proportion of impurities which may be present in solution.
 All of the determinations reported her with, have been made in the unfiltfTed water (just as receivedD Tn accordance with your request, and as I have stated above, the presence of the suspended matter, large proportion of which is organic, Is the only objectionable feature of impor tance connected with water No. 2, while sample No. contains compara- lively little suspended matter and a smaller amount of albuminoid ammonia than No. 2.
 If can furnish any further informa- tion on this subject, shall be glad to do so. Very respectfully.
 B. B. ROSS.