With the modern safe burglar it is almost totally different. Although much more skillful and successful than his predecessor, he is more conservative. He seldom runs his own head into danger, and therefore seldom endangers the head of a law-abiding citizen by permitting his head to come into contact with him or the job while it is under way. Every precaution is taken against being surprised, and it is seldom the robbery is discovered until the cashier's appearance the next morning. The modern safe burglar is an exceedingly keen, intelligent man. He can open a safe having all modern improvements in from ten minutes to two hours without the aid of explosives and by only slightly defacing the safe. Sometimes he leaves scarcely a mark. A first-class modern safe, whether large or small, generally has double outside and inside doors, with a steel chest in the bottom, forming really a safe within a safe, the inside being the stronger. The outside door is usually either "stuffed" or "skeleton." The inside one is made of eight or nine sheets, of different temper, of the finest steel. These sheets are bolted together with conical bolts having left-hand threads, after which the heads of the bolts are cut off, leaving what is virtually a solid piece of steel, which no drill can penetrate. The best locks are of the combination type, with time lock attachment. In many cities and town safes containing the valuables have an electric alarm attached. Any tampering with it will communicate the fact to the owners or the safe's guardian, which in cities is either an electric protective bureau or a central police station. A recent invention in France is a photographic attachment. As soon as the safe is touched this device will light an electric lamp, photograph the intruder and give the alarm at the electric protective company's office. As a consequence safe-breaking is going out of date in France, as the cleverest criminals have so far failed to find a way to circumvent the camera. The first thing considered by a gang of the finest experts is a desirable bank's location and the chances for getting safely away with the plunder. Every transportation facility is carefully considered. As the work is almost invariably done at the season of the year when wagon roads are impassible, railroad time tables are carefully considered. In these days of the telegraph and telephone the gang must be under cover in a large city or concealed with friends by the time the crime is discovered, which, at the utmost, is about six hours after the crime has been committed.