it might have been thought that changes of this nature could have been effected only by slow degrees; yet Sir J. Lubbock has shown a degree of variability in these main nerves in Coccus, which may almost be compared to the irregular branching of the stem of a tree.
pentsa zitekeen horrelako aldaketak astiro-astiro eta mailaz maila gauzatuak zirela, baina Sir J. Lubbock-ek erakutsi du Coccus-aren kasuan nerbio nagusi hauetan aldagarritasun gradu bat dagoela, ia-ia zuhaitz baten enborraren adartze irregularrarekin konpara daitekeena.