A description of the chief spy is given by M. de Gassicourt, a member of the medical suite of Napoleon: "Schulmeister is a man of rare courage and imperturbable presence of mind. He is made for great activities, his shoulders being broad, his chest deep, his body not tall, but capable of sustained exertions. His face is like an impenetrable mask." A German writer—an anonymous journalist in the _Courier du Bas-Rhin_, who has written much about the spy's career—describes Schulmeister as "one who ever seemed to affect the air of a man on whom the safety of the State depended." While absolutely incapable of the commonest feelings of humanity where strict business was concerned, as in the murder of Enghien, the spy appears to have considered it an indispensable part of his social equipment to waltz like a gentleman of the old court of Versailles, and with this momentous object in view employed the services of the most eminent dancing masters. His manners were said to be excellent by men who were sufficiently good judges, and, in any case, he must have acquired considerable polish to have passed muster in Austrian society of that age. He had not been long in Vienna, at all events, before he had attached to his own service, and of course for cash considerations, two well-known military men, who, when Mack took command of his army in the autumn of 1805, accompanied him to the Front, Schulmeister also proceeding thither as head of the military intelligence department attached to Mack's forces. During all this time he successfully contrived to keep closely in touch with Napoleon, from whom he was now taking sums of money for necessary expenditure and salary which, according to documents in the National Archives of France, containing much of the spy's correspondence, amounted to a sum equal to at least £20,000 per annum of our own money. Like most of the spy species, Schulmeister was a high liver, although Napoleon, a hard enough critic of accounts of all kinds, never laid any complaint to his charge on the ground of unnecessary extravagance.