Outside, a queer little house of lattice-work perched on a headland shelters the thermometers and barometers: on a still higher point directly over the foaming breakers is the anemometer, the little instrument which measures the swiftness of the fiercest cyclone as easily as the lightest spring breeze. It consists of four brass cups shaped to catch the wind, and attached to the ends of two horizontal iron rods, which cross each other and are supported in the middle by a long pole on which they turn freely. The cups revolve with just one-third of the wind's velocity, and make five hundred revolutions whilst a mile of wind passes over them. A register of these revolutions is made by machinery similar to a gas-meter. The popular idea, by the way, of the speed of the wind runs very far beyond the truth: we are apt to say of a racer that he goes like the wind, when the fact is the horse of a good strain of blood leaves the laggard tempest far behind; the ordinary winds of every day travel only five miles an hour, a breeze of sixteen and a quarter miles an hour being strong enough to cause great discomfort in town or field: thirty-three miles is dangerous at sea, and sixty-five miles a violent hurricane, sweeping all before it. Our friend the sergeant examines seven times a day at stated periods the condition of the atmosphere as to heat, weight and moisture, the velocity of the wind, the kind, amount and speed of the clouds, and measures the rainfall and the ocean swell: all these observations are recorded, and three are daily reported to headquarters at Washington. In these telegrams a cipher is used--as much, we presume, to ensure accuracy in the figures as for purposes of secresy. In this cipher the fickle winds are given the names of women with a covert sarcasm quite out of place in the respectable old weather-prophet whom every housewife consults before the day's work begins. Thus, when the telegraph operator receives the mysterious message, "Francisco Emily alone barge churning did frosty guarding hungry," how is he to know that it means "San Francisco Evening. Rep. Barom. 29.40, Ther. 61, Humidity 18 per cent., Velocity of wind 41 miles per hour, 840 pounds pressure, Cirro-stratus. N.W. 1/4 to 2/4, Cumulo-stratus East, Rainfall 2.80 inch."? Besides these simultaneous reports from the one hundred and eight United States stations which are telegraphed to the central office at Washington, there are received there daily three hundred and eighty-three volunteer reports from every part of the country, these being the system of meteorological observations under control of the Smithsonian Institution for twenty-four years, and given in charge to the Signal Service Bureau in 1874. In addition to these, again, are simultaneous reports from Russia, Turkey, Austria, Belgium, Denmark, France, England, Algiers, Italy, the Netherlands, Norway, Spain, Portugal, Switzerland, Canada--in all two hundred and fourteen. When we add together, therefore, the