1355. I did not give him a mouse until an hour later, at which time he was sunning in the orchard. 3 hours later he was still there and was given another. Thus it will be seen he is returning to his old habits again. I had little time today to devote to R and R5 because of two Anna Humming-birds, nearly dead from the frost, that I had to bring back to life. R5, however, had his two mice and R probably visited the cage. Effect of Cold on Anna Humming-birds. These two exceptional cold snaps, besides having caused the probable death of many of these birds directly through cold, have also, no doubt indirectly, had the same effect by destroying the flowers on the nectar and insects of which they subsist. In ad- dition they have decreased the supply of available water. Miss Bourne, at whose home Archie was found to roost, called by phone to ask what to do about two humming-birds that she had found in her garden apparently in a dying condition. I told her I would get advice from Mr. John Brock as to proper food and then go to her place. Accordingly I called up Brock and he advised a mixture of honey, milk and Mellin's food. Getting these foods together, I picked up Donald Brock and we went to Miss Bourne's home. She had been advised by a biologist (!) not to put them in her living-room, as it would be too warm for them! So they had been kept over night in a card-board box in the basement. When the box was brought up, the two birds were apparently dead: one on its back and the other face down, wings spread, both motionless. It looked hopeless. However, by looking closely, some movement was perceptible. I took a bird in each hand and held them in the stream of hot air coming out of a register while Donald prepared food. Soon I could feel the birds making some slight adjustments in their positions--they were "coming back." We now dipped their bills into the mixture, though their eyes were closed and they still looked all but dead. We worked their bills slightly with out fingers. They ran out their tongues. Soon they were thrust- ing their tongues with great rapidity into the food and swallowing at each thrust. I relaxed my grasp slightly and my bird was off with a buzz and hummed about the ceiling with astonishing energy where we could not get at it. Fortunately, in a remote corner, a spider's web fouled its wings and down it came, once more "dead". We revived it and put both in a cage, covered them and brought them here. After another good feed, they got sleepy and dozed comfortably on their perches. It is their upper eyelids that are the more mobile, just as in human beings. They were feed several times before sunset and were so hungry that one could see the level of liquid in the spoon gradually lower. They also found the water dish and drank from it frequently with- out assistance. They are now in their cage (11:15 P.M.) asleep on their perches, in the living room, covered by a cloth, with a thermostatically controlled light bulb in a chamber under the cage floor. One is an adult male and the other appears to be an immature male just getting his rosy purple gorget, with ruff, and flecks of the same hue all over his head. Miss Bourne found them sitting close together in an asparagus "fern" where it had climbed under the entrance porch. They were then "nearly dead." The fact that they were shielded from the sky (which was clear) and therefore lost no body heat through direct Upper eye-lids more mobile.