APPLICATIONS OF THE MICROSCOPE. 119 



failed to lead to any discovery. At first, it was 

 supposed that the sand might show at what 

 station the robbery had been effected ; but there 

 was sand at one station, and sand at another, 

 and sand at all the stations along the railway 

 line ; and so the trace seemed lost. But it was 

 shrewdly suggested that the sand in the box 

 should be submitted to the Microscope ; and 

 when so examined, this sand was found to con- 

 tain a peculiar minute organism. Specimens 

 of sand were then brought from all the railway 

 stations. On being examined, it was found that 

 only the sand of one station contained the pecu- 

 liar organism discovered in the sand of the box. 

 At this station, then, the robbery must have 

 been committed. The clue thus given was fol- 

 lowed up ; and as the Microscope brought to 

 light that little organism in the box, so that 

 little organism brought to light the parties who 

 had placed the sand in that box, and committed 

 the robbery. 



" It will have blood ; they say, Blood will have blood : 

 Stones have been known to move, and trees to speak ; 

 Augurs, and understood relations, have, 

 By magot-pies, and choughs, and rooks, brought forth 

 The secret'st man of blood." 



