We remained at this anchorage for upwards of a week, during which a rate for the chronometers was obtained, and the Bramble returned. WEATHER DURING WESTERLY MONSOON. The weather during our stay was very variable and unsettled; rain fell on several occasions. The wind was usually from the westward, varying between North-West and South-West, and on one occasion during the night we had a sudden and very violent squall from the westward, which for a time was thought to be the beginning of a hurricane, but the gale moderated very gradually next day. When the wind during the day was light and from seaward, a land breeze generally came off at night, occasionally with rain. The cause of this last seems to be the influence exerted upon the winds here by Mount Owen Stanley and the ranges connected with it, from which the clouds accumulated during the prevalence of the seabreeze, are reflected after its subsidence. The low and well wooded district between the mountains and the sea receives the passing influence of these clouds surcharged with moisture, and the climate there and in all the low maritime districts of the south-east part of New Guinea backed by high land, is probably always a moist one, little affected by the prevalence of either the North-West or South-East monsoon. The observations made during our last visit to determine the height of Mount Owen Stanley and not considered very satisfactory, were repeated under more favourable conditions, but with nearly the same result. This mountain, the highest of the range of the same name, is somewhat flat-topped (as viewed from our anchorage) about six miles in length, and the mean of five observations from different stations gave 13,205 feet as the height of the highest part above the level of the sea. PARIWARA ISLAND. On the largest Pariwara Island, although abundance of rain had fallen lately, there was no water left in any pool or hole in the rock. Nor although the soil, from the additional moisture, looked darker and richer than during my former visit in September, was there any perceptible improvement in the vegetation. A few fork-tailed red-fronted swallows (Hirundo neoxena) were hawking about, and a large yellow and black butterfly (Papilio epius, common in collections from India and China) was abundant. Many Torres Strait pigeons were observed from the ship to resort nightly to the second largest of the group, which is covered with trees and seems quite inaccessible from the steepness of its low cliffs. On several successive evenings about sunset, and until it became too dark to distinguish them, immense numbers of frigate-birds were observed flying over Redscar Head, and going out to the North-North-East. This being a gregarious bird only when associated at a breeding place, and there being no known sandbank or islet in the direction which they were pursuing, rendered their object a subject for much conjecture. MANY NATIVES VISIT US.