METEOROLOGY WATER. 1045 



A possible extension of the period of -weather forecasts, I'.. B. Garrioi i Mo. 

 Weather Rev., 34 1 1906), No. 1, pp. 22, 23). A study of counterbalancing tendencies 

 w ith regard to weather abnormalities in different part- of the globe leads to the con- 

 clusion that with completi f daily telegraphic communication with the domi- 

 nating "centers of atmospheric action " over Siberia, the Alaskan coast, the Azores, 

 and Iceland, "daily available Forecasts can undoubtedly be made of the general 

 character of the weather for at leasl one week in advance. Such general forecasts 



could specify the character, whether war r cold, wel or dry, of the weather of 



the near future, and could indicate the duration and termination, days in advance, 

 of periods of abnormal weather." 



Public water supply of Ohio i Ann. Upt. />'</. Health ohm, iu\ 1904), pp.61 

 Reports are given on plans for water supplies or sewerage proposed during 1904 tor 

 a large number of places in Ohio. 



The resultsof laboratory examination of waters, Bewage, and sewage effluents, and 

 studies of methods of purification are also reported in detail. 



It is stated that "with bill few exceptions the surface water- of the State are 

 unsuited for a public supply. En many regions the ground water is inadequate for 

 a city of much size. The purification of surface waters must receive more and more 

 attention. A filtration plant must be properly constructed and efficiently operated 

 to afford a safe water supply." 



It is suggested that " it would seem nol improper for the state Board of Health to 

 collect the evidence to show thai the water supply of any city is dangerous to life 

 and health. The attorney-general might present this evidence to a court of com- 

 petent jurisdiction — to the supreme court, if possible. If satisfied that conditions 

 were such that public interests warranted and demanded it, this court should have 

 authority to compel the city to make necessary improvements within a reasonable 

 time." 



Seventy-one cities and 177 villages, representing 55 per cent of the population of 

 Ohio, had a public water supply in L904. 



The sources of water supply in Wisconsin, W. G. Kirchoeter i Bui. Univ. 

 Wis., No. 106, pp. 103-267; abs. in Engin. News, 55 I 1906), No. IS, pp.855, 356).— It 

 is stated that of the 27o cities and villages in Wisconsin 120 are provided with a 

 public water supply. Fifty of the latter use artesian water. 30 ground water. 14 lake 

 water, 12 river water, and of the remainder the source of supply is not definitely 

 known. Of the artesian well supplies,. 27 are from Potsdam sandstone, 10 from St 



Peters sandstone, and the remainder from both. 



As regards the amount of water used from the various sources, lake waters rank 

 first, artesian, waters second, ground waters third, and river waters fourth. As to 

 sufficiency or quantity, lake waters rank first, river waters second, artesian waters 

 third, and ground waters fourth, and as to purity, artesian waters rank first, lake 

 waters second, ground waters third, and river waters fourth. The most serious 

 troubles with artesian water- were hardness and presence of iron. 



The biology of water bacteria, E. Kohn {Centbl. Halt, [etc.'], 2. Abt., 15 {1906), 

 \ :- 23, pp. 690 -708 t fig8. 3; 25, pp. 771 786). — This article reports studies on the 

 general course of multiplication of micro-organisms and changes in the composition 

 of the bacterial flora when water is allowed to stand and the food requirements of a 

 series of saprophytic fresh-water micro-organisms. 



The bacterial flora was found to change quantitatively and in composition when 



large samples of SWeel water were allowed to stand for a long time. The increase in 



germination was greatest in vessels of the kinds of glasses which were the most Boluble 

 in water. The phosphorus thus dissolved from the glass was sufficient for the require- 

 ments of the organisms, The organisms were found to vary widely with regard to 



their behavior toward the nutrient solutions, particularly the concentration of grape 



