London, Nov. 1. - There was an unexpectedly gloomy feeling yesterday morning ou the stock exchange and the Paris bourse, both these markets being influenced, it is inferred, from the aggrressive tone of the Frenen papers. Besides this, something extraordinary seems to have happened, and it looks as lf a crisis were approaching. The British emergency squadron is gathering at Devenport with all possible speed. Seven battleships and one cruiser have been thus far designated to join this squadron. Officers and sailors have been hurriedly recalled from leave of absence, several battleships and cruisera at Portsmouth are taking their full crews on board, and other warlike preparations are being made. AUeged Kusslan Spy Arrested. A number of signal men, now on duty with the British channel squadron, which arrived at Gibraltar yesterday, have been ordered home for service, it is presumed, on board the auxiliary cruisers if the latter should be required for active service. A sensation has been caused by the arrest yesterday morning of a supposed Russian spy at a fort near Harwich. The man was already under surveillance, and went to a redoubt where he tried to obtain some information from a sentry regarding the fortifleations. He was promptly arrested and inquiries are being made regarding nis anteeedenta. Volunteers Ordered To Be Beady. It was also asserted that the commanding officers of the London volunteer regiments had received orders to prepare for immediate mobilization, and it is reported that the different artillery corps have been informed as to the forts on the southern and eastern coasts to which they have been allotted. The Pall Mali Gazette yesterday afternoon said: "Bngland has been and even now is so near war that the government has carried its preparations to the farthest limit of the preparatory stage. It has been arranged to cali out the reserves and mtlitia and to mobilize the volunteers simultaneously, and to form large eamps at various important railroad junctions, where rolling stock and lecomotives will be concentrated."