But it may be maintained that the imperative nature of the task which confronted the Conference demanded a chart of ideas and principles different from that by which Old World diplomacy had been guided and that respect for the letter of a compact should not be allowed to destroy its spirit. There is much to be said for this contention, which was, however, rejected by Italian jurists as destructive of the sacredness of treaties. They also urged that even if it were permissible to dash formal obstacles aside in order to clear the path for the furtherance of a good cause, it is also indispensable that the result should be compassed with the smallest feasible sacrifice of principle. Hopes were accordingly entertained by the Italian delegates that, on their return to Paris, at least a formal declaration might be made that Italy's signature was indispensable to the validity of the Treaty. But they were not, perhaps could not, be fulfilled at that conjuncture. Advantage was taken in other ways of the withdrawal of Italy's representatives from the Conference. For example, a clause of the Treaty with Germany dealing with reparations was altered to Italy's detriment. Another which turned upon Austro-German relations was likewise modified. Before the delegates left for Rome it had been settled that Germany should be bound over to respect Austria's independence. This obligation was either superfluous, every state being obliged to respect the independence of every other, or else it had a cryptic meaning which would only reveal itself in the application of the clause. As soon as the Conference was freed from the presence of the Italians the formula was modified, and Germany was plainly forbidden to unite with Austria, even though Austria should expressly desire amalgamation. As this enactment runs directly counter to the principle of self-determination, the Italian Minister Crespi raised his voice in energetic protest against this and the financial changes,[223] whereupon the Triumvirs, giving way on the latter point, consented to restore the primitive text of the financial condition.[224] Germany is obliged to supply France with seven million tons of coal every year by way of restitution for damage done during the war. At the price of fifty francs a ton, the money value of this tribute would be three hundred and fifty million francs, of which Italy would be entitled to receive 30 per cent. But during the absence of the Italian representatives a supplementary clause was inserted in the Treaty[225] conferring a special privilege on France which renders Italy's claim of little or no value. It provides that Germany shall deliver annually to France an amount of coal equal to the difference between the pre-war production of the mines of Pas de Calais and the Nord, destroyed by the enemy, and the production of the mines of the same area during each of the coming years, the maximum limit to be twenty million tons. As this contribution takes precedence of all