Horseshoes made to counterfeit the tracks of cows

They are for the use of horses, but they are shaped below with a cloven foot of iron, so as to throw pursuers off the track.

“Can you recall that the tracks were sometimes like that, Watson” — he arranged a number of bread-crumbs in this fashion — : : : : : — “and sometimes like this” — : . : . : . : . — “and occasionally like this” — . ‘ . ‘ . ‘ . ‘ “Can you remember that?” (Sherlock Holmes)