with the seducer of her husband. This we know because sometimes the female Gerygone gives birth to a black egg quite a new theory on parasitism, though they do not doubt Lalages virtue evidently though it is parasited by Cacomantis but I doubt they know this or often seen Lalages nest. The extent it is parasited by Chalcites is quite normal and not like the absolutely abnormally excessive de- gree to which it suffers on Mare. PACHYCEPHALA PECTORALIS LITTAYEI (LAYARD:- One of the commonest species on Uvea and has spread even to the farthest island, out on the chain running to the west. It is plentiful but regularly spaced in all the tall forest areas, a pair or party every acre or so, except in the margins where tall forests adjoin garden lands (and in some cases short forest) or short scrubs, in such places its numbers are exceedingly high per acre. In tall forests it feeds up to 30 feet and occasionally higher and spends 90 per cent of its time within 10 or 15 feet off the ground and the greater part of that within 4 to 10 feet off the ground. It will actually feed on the ground, often search- ing in and about the butts and leaves of the birds nest rock fern for molluscs (small tree molluscs) and insects. In short, in forest behave exactly the same except that it feeds at lower levels generally and seldom goes above 15 feet and never above 20 feet. It penetrates out into low scrubs but does not remain and is generally scarce in such areas, except at times of waves outwards. To a limited extent it inhabits the pole-like ti-tree scrubs of the east