The inhabitants of Java divide the day into ten natural but vague and unequal subdivisions, and for astrological purposes the day of 24 hours is divided into five parts. They also determine the time of day by the length of the shadow and by the working-time, but the most common method is by pointing to the situations of the sun in the heavens, when such and such an event took place[51]. In order to indicate the time the natives of Sumatra also point to the height in the sky at which the sun stood when the event of which they are speaking occurred[52]. The natives of the western tribe of the Torres Straits, though they have learned to tell the time from the clock, also know how to give it very accurately by observing the height of the sun[53]. The Tahitians determine the six parts of their day from the sun’s altitude[54]. Among the Omaha Indians the sun indicates the time of day. A motion towards the zenith meant noon, midway between the zenith and the west, afternoon, and midway towards the east, forenoon[55]. The Karaya of Central Brazil divide up the day according to the position of the sun. Indications of time are given by pointing with the hand to the place occupied by the sun at the time in question[56]. This method of indicating the time of day is quite satisfactory, especially in the tropics and for primitive needs, and only more rarely does it give place to other methods, the chief of which is the observation of the length of shadows. The Javanese know this latter method but do not often use it. In their old writings we find a traveller described as setting out on his journey or arriving at the end of it when his shadow was so many feet long[57]. The Masai usually estimate the time of day from the position of the sun, but more rarely from the length of the shadows[58]. When the shadow measures nine feet, the Swahili say, “It is 9 o’clock (_sic!_)”[59]. To indicate the time of day or to represent a distance the Cross River natives use the length of shadows. They have however in most of their houses a curious species of sun-dial, a plant about 50 cm. high, with violet-white flowers. The flowers gradually begin to open at sunrise, by noon they are wide open, and they gradually close again between noon and sunset. One of these plants is placed in every garden and enclosed within little stones[60]. To the south of Lake Nyassa the time of day is reckoned either from the position of the sun or from the length of the shadow thrown by a stick, _nthawe_[61]. The Society Islanders among their numerous expressions for the time of day include two which have reference to shadows, ‘the shadow as long as the object’, ‘the shadow longer than a man’[62]. The Benua-Jahun, a primitive tribe of the Malay Peninsula, indicate the progress of the day by the inclination of a stick. Early morning is represented by pointing a stick to the eastern horizon. Placed erect it indicates noon, inclined at an angle of about 45° to the west it