Haldane guesses that a dog would probably be able to place the acids in the order of their molecular weights by their smells, just as a man could place a number of piano wires in the order of their lengths by means of their notes.
Holdeins min, ka suns, iespējams, spētu sarindot skābes pēc molekulmasas pēc to smaržas, gluži kā cilvēks spēj sarindot klavieru stīgas pēc garuma pēc to notīm.