Report of the Commissioner of Patents for the year ..
This is an annual US government report from the Patent Office, printed in Washington in 1849 for Congress and the public, with its plates showing agricultural and natural-history subjects. The pictures are fine black-line engravings on cream paper: cell-like ovoid clusters, branched fungal or algal filaments, a feathery branching plant, and a plate of insects and their larval stages with labelled figures, useful for scientific diagram layouts.
