From the Sept. 24, 1907 NYT:

It is known that the members of the French Chamber of Deputies last year voted themselves an additional salary of 6,000 francs. It is not so well known that this action was resented by the Socialists...By some means it came to be understood that a "divvy" was the duty of the Socialist Deputy. If he handed over half of the "unearned increment" to the Socialist Treasury he might keep the other half.

So far, so good. However, it is interesting that the socialists didn't take all of the pay raise.

But it gets better:

Thirty-two Socialist Deputies have accordingly submitted to this Socialist tax. But ten have made only a partial surrender of the moiety, pleading, possibly the same "increase in the cost of living" which was pleaded in behalf of the increase of pay. Eight have omitted to divided with the party to any extent whatever, being apparently of the opinion that 3,000 francs would compensate them for any odium they might incur by keeping it for themselves...

Such an excellent and subtle economic argument offered in a similar story today would be surprising.