an inch per day.  The dimensions of this singular little dam were very small:  the depth was its most satisfactory feature.  It was, as all native watering places are, funnel-shaped, and to the bottom of the funnel I could poke a stick about three feet, but a good deal of that depth was mud; the surface was not more than eight feet long, by three feet wide, its shape was elliptical; it was not full when we first saw it, having shrunk at least three feet from its highest water-mark.  I now decided to return by a new and more southerly route to the depot, hoping to find some other waters on the way.  At this dam we were 160 miles from Eucla Harbour, which I visited last February with my black boy Tommy and the three horses lost in pushing from Wynbring to the Finniss.  North from Eucla, running inland, is a great plain.  I now wished to determine how far north this plain actually extended.  I was here in scrubs to the north of it.  The last night we camped at the dam was exceedingly cold, the thermometer falling to 26 degrees on the morning of the 16th of August, the day we left.  I steered south-east, and we came out of the scrubs, which had been thinning, on to the great plain, in forty-nine or fifty miles.  Changing my course here to east, we skirted along the edge of the plain for twenty-five miles.  It was beautifully grassed, and had cotton and salt-bush on it:  also some little clover hollows, in which rainwater lodges after a fall, but I saw none of any great capacity, and none that held any water.  It was splendid country for the camels to travel over; no spinifex, no impediments for their feet, and no timber.  A bicycle could be ridden, I believe, over the whole extent of this plain, which must be 500 or 600 miles long by nearly 200 miles broad, it being known as the Hampton plains in Western Australia, and ending, so to say, near Youldeh.  Having determined where the plain extends at this part of it, I now changed my course to east north-east for 106 miles, through the usual sandhill scrubs and spinifex region, until we reached the track of the caravan from Youldeh, having been turned out of our straight course by a large salt lake, which most probably is the southern end of the one we met first, at eighteen miles west from Ooldabinna.  By the tracks I could see that the party had not retreated to Youldeh, which was so far re-assuring.  On the 22nd of August we camped on the main line of tracks, fifteen miles from home, when, soon after we started, it became very cloudy, and threatened to rain.  The weather for the last six days has been very oppressive, the thermometer standing at 92 to 94 degrees, every day when we outspanned, usually from eleven to half-past twelve, the hottest time of the day not having then been reached.  As we approached the depot, some slight sprinklings of rain fell, and as we drew nearer and nearer, our anxiety to ascertain whether our comrades were yet there increased; also whether our camels, which had now come 196 miles from the dam, could get any water,