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The Natural Arsenical Waters Of La Bourboule

RRP $16.99

An excerpt from a review in The Dublin Journal of Medical Science,Volume 101, published in 1896.

The rarity of arsenical springs, and their value in the treatment of certain classes of disease, give special interest to this tract. There is, if we remember aright, a mineral water containing arsenic in England, but it has not been utilized for therapeutical purposes. In France several springs-at Mont Dore, La Malou, Vals, Vichy, Plombieres, St. Nectaire-have traces of arsenic in their composition; but the spring of Choussy-Perriere at La Bourboule is an arsenical water. Its characteristic is a high percentage of the sodium arsenate and sodium chloride, with a small amount of iron.

This copious spring-discharging 23,310 litres in the hour-has a constant temperature of 60° C. Its composition per litre, as analysed by MM. Bouis and Lefort in 1878, is as follows:-Sodium arseniate, 0.02847 "(equal to 7 milligrammes of arsenic"); free carbonic acid, 0.0518; sodium chloride, 2.8406; potassium chloride, 0.1623; magnesium chloride, 0.0320; sodium bicarbonate, 2.890; sodium sulphate, 0.2084; "bicarbonate of lime," 0.1905; ferric oxide, 0.021; silicic acid, 0.1200; with traces of lithium chloride, manganese and aluminium.

The water of this spring is carefully bottled for export; but its good effects will be more surely produced on the spot, where internal administration is combined with baths. These are taken at a temperature of 35° C, and, as a general rule, continued for half an hour at a time.

For a list of the diseases likely (or certain) to be benefited by the use of the arsenical water of La Bourboule, we must refer our readers to Dr. Brown's pamphlet. It seems to include most of the diseases to which flesh is heir; and, perhaps, a grain or two of sodium chloride may be taken with the author's sanguine description. The temperature and composition of the water, however, will suggest to the practitioner cases in which the spring may be recommended with prospect of favourable results.


How To Build A Bottled Water Dealer Business

RRP $18.99

In clear, easy-to-grasp language, the author covers many of the topics that you will need to know in order to launch and run a successful business venture.


Regionalization Of Watersheds

RRP $49.95

Design of water control structures, reservoir management, economic evaluation of flood protection projects, land use planning and management, flood insurance assessment, and other projects rely on knowledge of magnitude and frequency of floods. Often, estimation of floods is not easy because of lack of flood records at the target sites. Regional flood frequency analysis (RFFA) alleviates this problem by utilizing flood records pooled from other watersheds, which are similar to the watershed of the target site in flood characteristics.

Clustering techniques are used to identify group(s) of watersheds which have similar flood characteristics. This book is a comprehensive reference on how to use these techniques for RFFA and is the first of its kind. It provides a detailed account of several recently developed clustering techniques, including those based on fuzzy set theory and artificial neural networks. It also documents research findings on application of clustering techniques to RFFA that remain scattered in various hydrology and water resources journals.

The optimal number of groups defined in an area is based on cluster validation measures and L-moment based homogeneity tests. These form the bases to check the regions for homogeneity.

The subjectivity involved and the effort needed to identify homogeneous groups of watersheds with conventional approaches are greatly reduced by using efficient clustering techniques discussed in this book. Furthermore, better flood estimates with smaller confidence intervals are obtained by analysis of data from homogeneous watersheds. Consequently, the problem of over- or under-designing by using these flood estimates is reduced. This leads to optimal economic design of structures. The advantages of better regionalization of watersheds and their utility are entering into hydrologic practice.

Audience
This book will be of interest to researchers in stochastic hydrology, practitioners in hydrology and graduate students.



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Aqua Zero Books

Bottled Water Drink Water Water H2O
Aqua Water Park Diving Underwater
Ocean Cave Diving Waterproof Water Park
Swimming Pool Softened Water Water Air Harvesting Water

Aqua Zero