average spatial: 12 cm x 4.3 cm x 4.3 cm; 4 3/4 in x 1 11/16 in x 1 11/16 in ...

I DESIRE to direct the attention of entomologists to a recently discovered muscle (see Bee World, vol. iii. p. 282, April 1922) present in the honey bee (Apis mellifica), and probably in many others ...