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Temperature Study Table

July 10th 9° a.m.    — 12th 2° 30' 15th 8° am — 1° 4. 30'

18° C. 17 1/2 C. 65° F 19° C. 19 1/4

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(16

730

Ch XI

(The extraordinary industry of bees and the number of flowers which they visited by them within a short time, so that each flower is visited repeatedly, must greatly increase the chance of all being fertilised by each receiving pollen from a distinct plant. When the nectar is in any way hidden, bees cannot tell without inserting their proboscides trying

[222]

July 13 Sand Bath.

[table not transcribed]

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following days. *(Gard. Chron. 1857 p. 125) Mr Belt has communicated to me (July 28th 1874) a similar case, with the sole difference that less than half of the flowers had been perforated by the humble-bees; nevertheless, all the hive-bees gave up sucking at the mouths of the flowers and visited only exclusively the bitten bitten ones. holes which had been made. These cannot be seen by a bee standing on the wing petal. Now how did the hive-bees find out so quickly that that holes had been made? Instinct seems to be out of the question, as the plant is an exotic. The holes cannot

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Study Table

23d 9° 30'. 20° C.

— 10. 30' P.m do

25. 5° P.m 19 1/2 C.

27 11° am. 19 1/2 C.

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had at hearing that all the individuals of one species [illeg] within the space of 24 hours understood an of a plan for=

opening nuts in a particular manner which was [illeg] a distinct species. I may add as a corollary [text excised] need not doubt bees can understand. After by a distinct species, & profited by it.) [text excised]skill which bees exhibit in boring flowers [text excised]not doubt that they could understand & profit dark lines which in so many flowers point to

[text excised] [illeg]

repeatedly observed that all their all the hive- & humble-bees