THURSO. — The schooner Clarence G.Sinclair, of Wick, coal laden from the Tyne for Thurso, while lying at anchor in Scrabster Roadstead, signalled for help, as a strong gale was blowing from the N.E., there was a heavy sea to which the vessel was fully exposed, and she was in imminent danger of driving ashore. The Life-boat Co-operator No. 3 proceeded to her assistance and took off her crew of five men. The boat then went to the schooner Isabella Stuart, which had signalled, took off her crew of three men, and afterwards made for Scrabster, where all the men were landed..