كتب ذات صلة

Vollständige Naturgeschichte der schädlichen Forstinsekten : ein Handbuch für Forstmänner, Cameralisten und Dekonomen

Ueber den unmittelbaren nutzen der insekten.

A treatise on some of the insects of New England which are injurious to vegetation

Some south Indian insects and other animals of importance considered especially from an economic point of view

• Scientific papers of Asa Gray
  المؤلفون: Gray, Asa ,  Sargent, Charles Sprague
• Scientific papers of Asa Gray
  المؤلفون: Gray, Asa ,  Sargent, Charles Sprague
• Scientific papers of Asa Gray
  المؤلفون: Gray, Asa ,  Sargent, Charles Sprague

• Results of spraying experiments against caterpillars of the gypsy and brown-tail moths
  
• Massachusetts agricultural journal.
  
• Massachusetts agricultural journal.