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The Saas chronicler, indeed, avers that the chapels were not built till 1709--a statement apparently corroborated by a date now visible on one chapel; but we must remember that the chronicler did not write until a century or so later than 1709, and though, indeed, his statement may have been taken from the lost earlier manuscript of 1738, we know nothing about this either one way or the other. The writer may have gone by the still existing 1709 on the Ascension chapel, whereas this date may in fact have referred to a restoration, and not to an original construction. There is nothing, as I have said, in the choice of the chapel on which the date appears, to suggest that it was intended to govern the others. I have explained that the work is isolated and exotic. It is by one in whom Flemish and Italian influences are alike equally predominant; by one who was saturated with Tabachetti's Varallo work, and who can improve upon it, but over whom the other Varallo sculptors have no power. The style of the work is of the sixteenth and not of the eighteenth century--with a few obvious exceptions that suit the year 1709 exceedingly well. Against such considerations as these, a statement made at the beginning of this century referring to a century earlier, and a promiscuous date upon one chapel, can carry but little weight. I shall assume, therefore, henceforward, that we have here groups designed in a plastic material by Tabachetti, and reproduced in wood by the best local wood-sculptor available, with the exception of a few figures cut by the artist himself.

In the south the Lucanians also rose against Rome. The extension of the Roman dominion in the south of the peninsula had brought the state into connection with the Greek cities, which at one period were so numerous and powerful as to give to this part of Italy the name of Magna Graecia.[25] Many of these cities had now fallen into decay through internal dissensions and the conquests of the Lucanians and other Sabellian tribes; but Tarentum, originally a Lacedaemonian colony, still maintained her former power and splendor. The Tarentines naturally regarded with extreme jealousy the progress of the Roman arms in the south of Italy, and had secretly instigated the Etruscans and Lucanians to form a new coalition against Rome. But the immediate cause of the war between the Lucanians and Romans was the assistance which the latter had rendered to the Greek city of Thurii. Being attacked by the Lucanians, the Thurians applied to Rome for aid, and the Consul C. Fabricius not only relieved Thurii, but defeated the Lucanians and their allies in several engagements (B.C. 252). Upon the departure of Fabricius a Roman garrison was left in Thurii.

It has been assumed in these rules that the titration has yielded proportional results; but these are not always obtained. There can be no doubt that in any actual re-action the proportion between any two re-agents is a fixed one, and that if we double one of these then exactly twice as much of the other will enter into the re-action; but in the working it may very well be that no re-action at all will take place until after a certain excess of one or of both of the re-agents is present. In titrating lead with a chromate of potash solution, for example, it is possible that at the end of the titration a small quantity of the lead may remain unacted on; and it is certain that a small excess of the chromate is present in the solution. So, too, in precipitating a solution of silver with a standard solution of common salt, a point is reached at which a small quantity of each remains in solution; a further addition either of silver or of salt will cause a precipitate, and a similar phenomenon has been observed in precipitating a hydrochloric acid solution of a sulphate with baric chloride. The excess of one or other of the re-agents may be large or small; or, in some cases, they may neutralise each other. Considerations like these emphasise the necessity for uniformity in the mode of working. Whether a process yields proportional results, or not, will be seen from a series of standardisings. Having obtained these, the results should be arranged as in the table, placing the quantities of metal used in the order of weight in the first column, the volumes measured in the second, and the standards calculated in the third. If the results are proportional, these standards will vary more or less, according to the delicacy of the process, but there will be no apparent order in the variation. The average of the standards should then be taken.

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