The wholesale massacres that have recently taken place in Syria may well arrest the attention of the Christian world, and the fact that France and England have resolved to interfere to prevent further atrocities will be hailed with approval.  The work of extermination has been remorselessly pursued from Sidon to Zahleh, and French, English, Russian and American citizens, with many thousand Christian subjects of the Porte, have fallen victims to the Druses and other savage races of Lebanon.  A letter from Jaffa, 21st of June, states that Palestine already feels the effect of the horrible scenes in the Lebanon, and no Christian of Damascus dares leave his house for fear of a rising of the fanatical Musselmens of that great city. A body of 5,000 Bedouin Saks are ravaging Tiberiade and the neighborhood, and serious fears are entertained for Nazareth and the towns in the interior. The subject of the Syrian massacres was brought up in the British Parliament on the 10th, and it was stated that Admiral Martin had been ordered with a squadron to the coast of Syrian, to take such steps as might be necessary for the protection of the British subjects, and the French government had also sent some ships of war for the same purpose for the same purpose to that coast.  England had also been in communication with the Governments of Turkey, Russia, Prussia, Austria, and France,, as to the measure which will become necessary. The Rev Dr Thomson writes to the N.Y Observer from Beirut, June 20th, that the European ships of war are beginning to assemble, and the Consuls have received orders to all act in concert and stop the war.  He says - "It is expected that Russia and france will act separately from England, Austria and Prussia, and the downfall of the whole Turkish Empire may be looked for.