The following notes are based on the apparatus criticus in the edition of E. T. Merrill (Teubner, 1922):

I. 20. 5 ‘uides ut statuas, signa, picturas, hominum denique multorumqne animalium formas, arborum etiam, si modo sint decorae, nihil magis quam amplitudo commendet.’ Why ‘many animals’ and not ‘many men’ and ‘many trees’ ? Read mutorum; with ‘animalia,’ a standing opposition to ‘homines,’ as in Seneca, Ep. 76. 26 'ea quae tam homini contingunt quam mutis animalibus, 'where also it has been corrupted to multis as in many other places.