At 7.25, and fed till 7.28, when she began flying about the room and even into the next; so I thought it well to put her out of the window, when she flew straight away to her nest. My room, as already mentioned, had windows on two sides; and the nest was in the direction of a closed window, so that the wasp had to go out of her way in going out through the open one. At 7.45 she came back. I had moved the glass containing the honey about two yards; and though it stood conspicuously, the wasp seemed to have much difficulty in finding it. Again she flew to the window in the direction of her nest, and I had to put her out, which I did at 8.2. At 8.15 she returned to the honey almost straight. 8.21, she flew again to the closed window, and apparently could not find her way; so at 8.35 I put her out again. It seems obvious from this that wasps have a sense of direction, and do not find their way merely by sight. At 8.50 back to honey, and 8.54 again to wrong window; but finding it closed, she took two or three turns round the room, and then flew out through the open window. At 9.24 back to the honey; and 9.27 away, first, however, paying a visit to the wrong window, but without alighting. At 9.36 back to the honey, and 9.39 away, but, as before, going first to wrong window. She was away therefore 9 minutes. 9.50 " 9.53 away, this time straight. " 11 " 10 " 10. 7 " " 11 " 10.19 " 10.22 " " 12 " 10.35 " 10.39 " " 13 " 10.47 " 10.50 " " 9 " 11. 4 " 11. 7 " " 14 " 11.21 " 11.24 " " 14 " 11.34 " 11.37 " " 10 " 11.49 " 11.52 " " 1 " 12. 3 " 12. 5 " Away therefore 11 minutes. 12.13 " 12.15½ " " 8 " 12.25 " 12.28 " " 10 " 12.39 " 12.43 " " 11 " 12.54 " 12.57 " " 11 " 1.15 " 1.19 " " 18 " 1.27 " 1.30 " " 8 minutes,' &c., &c., the way being now clearly well learnt. But that the sense of direction is of much service to bees in finding the locality of their hives seems to be indicated by the following observation thus narrated, on the authority of the authors themselves, by Messrs. Kirby and Spence:--