Excitement ox the War Qcestiox ix- Fraxce.—Some idea of the excited state of the public mind in France on the Mexican ques tion may be gathered from the fact that the arcMentnl presence of ono of General Sher inan's sJds-de-camp (General Schofield) in Paris, whither he went for the benefit of his health, has served to alarm Paris by rumors of impending war.