In swampy localities crocodiles and alligators are found. Diminutive silurians, such as chameleons and small lizards, swarm everywhere, and occasionally iguanas and the larger lizards are seen. It is frequently claimed that no poisonous reptiles or insects exist in Cuba, but this statement admits of some qualifications. There is no doubt that certain scorpions and spiders, as well probably as a few other insects, are venomous. The snakes, of which there are but few varieties, appear to be harmless to mankind. One of these, the _maja_, which grows to about twelve feet, is almost tame and frequents small villages and farmhouses, its favorite dwelling place being the palm-thatch roofs of abandoned buildings. The climate of Cuba is chiefly characterized by great humidity, abundant rainfall, and comparative uniformity of temperature. The range between the mean of the hottest month and that of the coolest is from 82 degrees to 71 degrees Fahrenheit. While this statement applies precisely to Habana it is approximately true of other parts of the Island. It is a little warmer along the south coast than upon the north, which is swept by the trade winds throughout the year. The mean humidity is 75 degrees and is nearly uniform throughout the year. This makes the climate enervating, especially to foreigners. There is no great difference between the “summer” and the “winter” seasons, but during the latter, which embraces the six months following the first of November, the weather is delightful and the heat seldom oppressive. The mean annual rainfall upon the northern coast is fifty-two inches. Inland and through the southern portion of the Island it is somewhat less. About two-thirds of the precipitation occurs between May and October. During this season intermittent showers fall from about ten o’clock until sunset. The nights are usually cool and clear at all times of the year. In strict meteorological sense Cuba is not within the hurricane zone, which lies somewhat to the east of it. Nevertheless, the Island has been not infrequently visited by such storms and some of them have occasioned great damage. The worst visitation of this sort happened in 1846, when more than one-fourth of the city of Habana was destroyed and upwards of one thousand persons killed or severely injured. Although in a region subject to severe earthquakes, and itself not infrequently visited by shocks of alarming violence, the Island has never been seriously damaged by seismic disturbances. In winter, when the trades take a southerly sweep, “northers,” bred in the great storms of the United States, are apt to strike the Island, sometimes lowering the temperature suddenly to 50 degrees, or thereabouts. The result is keen, if brief, suffering, for the people make little provision in their clothing or surroundings for such low temperature.