. Ants, bees, and wasps. A record of observations on the habits of the social Hymenoptera . Routes followed in experiment No. 1, as detailed above. A, position of pencil. B, paper bridge. C and D, glass with , point where larva dropped, the opposite arrow and loop markingreturn route. 1,2, 3, 4, comparatively straight paths to the glass5. 5. circuitous route on shifting of glass. * different access to nest she returned on the next journey and was on the glass,I moved it 3 inches, to d, so that the end of the glasswas 6 inches from the base of the pencil. If she weremuch guided by sight
. Ants, bees, and wasps. A record of observations on the habits of the social Hymenoptera . Routes followed in experiment No. 1, as detailed above. A, position of pencil. B, paper bridge. C and D, glass with , point where larva dropped, the opposite arrow and loop markingreturn route. 1,2, 3, 4, comparatively straight paths to the glass5. 5. circuitous route on shifting of glass. * different access to nest she returned on the next journey and was on the glass,I moved it 3 inches, to d, so that the end of the glasswas 6 inches from the base of the pencil. If she weremuch guided by sight, then she would have had little 252 DIFFICULTY IN ;>r no difficulty in finding her way back. Her pathway,however (No. 5), which is traced on the paper, showsthat she was completely abroad; and, after all, she got5>ack to the nest by a different route. Fig. Routes followed in experiment No. 2, as mentioned in text B, paper bridge leading to nest, c, glass tray with larvae, in itsSrst position ; and D in its position when shifted. 1,2, 3, 4, thinwhite lines indicating th? comparatively straight routes. 5, thickwhite line, and 6, dotted ne showing tortuous paths when glass hadBeen altered in position The arrows indicate directions travelled. FINDING THEIR WAY. 253 I then varied the experiment as subjoined, aud aashown in the woodcut (Fig. 13). Experiment 2.—I connected the table with tl tnest by a paper bridge, the end of which is showtat B (Fig. 13), and which came down about an inclfrom the pole supporting the nest (see Fig. 1). TVpole rose 18 inches above the table. I then put V.*tglass tray (c) with larvse as before, 12 inches fromthe base of the pole, and put an ant to the she had learnt her way I traced four of he?routes, as shown in the thin lines 1, 2, 3, 4. I thenon her next journey (5, thick white Ine), when shewas
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbees, booksubjectwasp
