Separate supplies were sent to the sick in the tents. The troops allowed no camp fires, fearing that the trees of the park might catch and drive the people out of this refuge to the open and windswept sands by the ocean. The wind which had saved the heights came cold across the park, driving a damp fog, and for those who had no blankets it was a terrible night, for many of them were exhausted and must sleep, even in the cold. They threw themselves down in the wet grass and fell asleep. When the morning came the people even prepared to make the camp permanent. An ingenious man hung up before his little blanket shelter a sign on a stick giving his name and address before the fire wiped him out. This became a fashion, and it was taken to mean that the space was preempted. Toward midnight a black, staggering body of men began to weave through the entrance. They were volunteer fire fighters, looking for a place to throw themselves down and sleep. These men dropped out all along the line and were rolled out of the driveways by the troops. There was much splendid unselfishness there. Women gave up their blankets and sat up or walked about all night to cover exhausted men who had fought fire until there was no more fight in them. CHAPTER IV. TWENTY SQUARE MILES OF WRECK AND RUIN. =Fierce Battle to Save the Famous Ferry Station, the Chief Inlet to and Egress from San Francisco--Fire Tugs and Vessels in the Bay Aid in Heroic Fight--Fort Mason, General Funston's Temporary Headquarters, has Narrow Escape--A Survey of the Scene of Desolation.= When darkness fell over the desolate city at the end of the fourth day of terror, the heroic men who had borne the burden of the fight with the flames breathed their first sigh of relief, for what remained of the proud metropolis of the Pacific coast was safe. This was but a semi-circular fringe, however, for San Francisco was a city desolate with twenty square miles of its best area in ashes. In that blackened territory lay the ruins of sixty thousand buildings, once worth many millions of dollars and containing many millions more. The fourth and last day of the world's greatest conflagration had been one of dire calamity and in some respects was the most spectacular of all. On the evening of the third day (Friday) a gale swept over the city from the west, fanned the glowing embers into fierce flames and again started them upon a path of terrible destruction. The fire which had practically burnt itself out north of Telegraph Hill was revived by the wind and bursting into a blaze crept toward the East, threatening the destruction of the entire water front, including the Union ferry depot, the only means of egress from the devastated city.