QUEEN-REARING IN ENGLAND. 



8i 



surface of the corbicula and the pollen already collected. 

 This is seen in Fig. 40, which shows a pollen mass in the 

 corbicula of a honey-bee caught early in April, 1912, con- 

 sisting of white pollen, to which had been added a little 

 orange pollen. It is also indicated in Fig. 42, which is 

 an untouched micrograph of the two loads, cut in half, from 

 the corbiculse of a worker of a bumble-bee, Bombus terres- 

 tris, caught on July 23rd, 1912. In the course of loading 



aur/c/e fr-'" 



SiemS-om above. Side. View. View from beneath. 



Fig. 40. 



Left leg of BTitish Golden Honey-bee loaded 

 with, two kinds of pollen. 



t, tibia bearing the corbicula or pollen-basket. 

 m, brush on metatarsns. The clear portions of the 

 loads consist of white pollen (loaded first), the 

 closely dotted portions of orange pollen (loaded 

 later), and the remotely dotted portions of pale 

 orange pollen; the latter where it is shown 

 detached from the orange, is on the surface only. 



up this bee changed from white pollen to yellow or orange, 

 and from yellow or orange to white no less than seven times, 

 and the stratification caused by the successive changes is 

 very instructive. 



The bee keeps the growing load in shape by patting it 

 occasionally with the metatarsus of the middle leg. The exact 

 region thus patted is shown in Fig. 40 (middle drawing) as 

 a remotely dotted area consisting of orange pollen added by 

 the patting. 



