Amongst this Some parts are

Hairmyres, two miles west of East Kilbride, is an old limestone quarry, in disuse for upwards of twenty years, and mostly grown over with moss and varied species of pondweed. pondweed Ostracoda are moderately plentiful. very ochreous, yet there the Ostracoda are not uncommon and in fine condition. The following species are generally met with:

Possil Marsh, or Loch, about three miles north of Glasgow, is of considerable extent, with both hard and swampy margins, and mostly well grown up with vegetation, though at the same time there is a large portion of clear water. At the north end a number of weedy, stagnant ditches are connected with the loch, and far exceed it in richness and variety of Ostracoda. This is one of those places where, when judging from appearance, we expect much but get little. The following species are from the marsh and ditches:

Frankfield Loch, about four and a half miles east of Glasgow. No place could have a more promising appearance for Ostracoda. It covers about seven or eight acres, nowhere deep, and in most places it can be waded in. There is an abundance of marsh plants growing all over it, and the margins are grassy, with many ditches filled with vegetation, which harbour a fair proportion of Ostracoda and other Microzoa.

Woodend Loch, about three-quarters of a mile to the south of Gartcosh Station, on the Caledonian Railway, and seven miles east of Glasgow. This loch is nearly half a mile long, and about a quarter of a mile broad; the margins on the north-western side are flat and shallow, and overgrown with vegetation, chiefly grass; and this is, perhaps, the best side for the capture of Ostracoda.

The following species were taken, 5th June, 1878:

Johnston Loch, about 7 miles east of Glasgow, and a little to the north of Gartcosh Railway Station, is of a quadrangular form, and about a quarter of a mile each way. The greater part of the margin is covered with weed, and not very deep, and the bottom is hard for a considerable distance from the shore, affording good footing. No place could be more convenient for collecting Microzoa. Daphniada are in great abundance; Hydrachna and Lynceida are common. The species taken 3rd June, 1878, were—

Bishop Loch is about 7 miles east of Glasgow, near Gartcosh

Station, and is nearly a mile in length by a quarter of a mile in

breadth.

A great part of the margin is covered with tall grass other aquatic vegetation. The Ostracoda found in it are—

and

The last two were got in a ditch close by the Loch.

Antermony Loch is 10 miles north-east of Glasgow, about a mile east of Miltown Station. It covers about 33 acres, and at its greatest depth is 20 feet. It shallows towards the sides, which are mostly hard and gravelly, but a large portion is swampy and grown over with tall grass. At different times of the year there are different crops of vegetation.

A day or two before my visit, heavy rains having fallen, the loch was much above its usual height, and, as it had been extremely dry some weeks before, it seemed very unfavourable for a successful take of Ostracoda, and so it turned out. One species only was very abundant-Cypris tessellata-but almost all young, and at this stage they were all coarsely marked. Although this gathering was rather poor, I have no doubt, from the appearance of the place, that if trials were made at favourable times good gatherings would be obtained. 4th November, 1878

Duddingston Loch, Edinburgh.-This loch is an irregular oval about three-quarters of a mile in length and about half as broad. The greater part of the margins are well covered with vegetation, and although soft and swampy at both ends, there is ample extent of hard borders both on the north and south sides to work from without inconvenience. The Ostracoda are rather above the average in number of species, including a few of rare occurrence. This abundance is all the more remarkable as the loch is well stocked with fish and frequented by swans, neither of which are considered favourable to the increase of Ostracoda. The species obtained are

Lochmaben, Dumfriesshire.-There are a number of lochs in this neighbourhood of easy access, and during a day's stay I had a few hauls in six of them. Mill Loch is close to the burgh, and is of considerable depth. It contains the far-famed "Vendace," which Sir William Jardine considered to be closely allied to the Salmo albula of Linné. The west end of the Loch is the most favourable for Ostracoda collecting, being shallow and weedy. The Year