Occasionally (says an English paper) the newspaper posters blazon forth tho announcement of some big burglary. Tho world reads it, makes some remarks about it being very daring, and then promptly forgets all about it. Nobody, outside tho police force and the perpetrators of the crime, reflects on tho time and trouble spent in planning tho burglary. Yot, so far as tire thieves are concerned, tho big ger half of tho battle is over before au entrance into a house is ever attempted. Let me furnish readers with a few examples of how big robberies have been planned as they were given to mo by a detective-sergeant. A gang of four, some of tho smartest cracksmen working, wore inclined to at tempt a midnight robbery of a large West End jeweller’s. For some time tho place was watched by the gang, and after a time, during which the most judicious inquiries were made, the foot was elicited that the keys of a big safe were always taken charge of by the cashier. Directly this was learnt, one of the gang, a gentlemanly looking man, took rooms iu tho samo house as the cashier, and forthwith began to cultivate his acquaintance. On a night ■ previously arranged with tho rest of tho gang, he obtained possession of the keys after tho cashior had retired to bed. Then quickly ho repaired to a rendezvous agreed on. Within a couple of hours they had entered the jeweller’s and rifled tho safe and shop. The man who had taken tho keys at onoe returned homo, not having been missed. Uo restored the keys to tho pocket of the cashier, so that tho latter in the morning was unaware that they had been taken away iu tho night, and when the rifled safe was shown to him in tho morning, and the argument advanced that the safe had been unlocked, he was ready to swear that the keys had not boon out of his possession. In another case, in which throe or more burglars were concerned, a most ingenious idea was hit upon. A suburban branch of a well-known bank was tho “ crib ” pro posed. But it was a dangerous place, for it had been carefully observed that tho police passed the place pretty frequently. 