[12th October 1916] furrows as though a crowd of tine snakes had been creeping through the dust.
Solpugidal*: – In Spring and early summer the spiders of this group are numerous in the desert. Their formidable appearance and carnivorous habits soon attract attention. They are of large size, spanning some five inches. Their pedipalpae and limbs are covered with long, fine, extremely sensitive tactile hairs which supply the spider with its marvellous sense of touch. These far-reaching hairs are to the solpugid spider what the radii of a snare are to the geometrical spider; the means by which it expands its delicate tactile sense. And I fancy that these fine hairs can detect more than actual contact, for I suspect that, through them, the spider can appreciate aerial