Roberto Dabbene Penguins along the coasts and islands of the Argentine seas https://doi.org/10.56178/eh.v2i1.56 PDF (Spanish) 1-9
Miguel Fernandez Los pichones de nuestra Cigüeña Euxenura maguari (Gm.) https://doi.org/10.56178/eh.v2i1.59 PDF (Spanish) 35-38
F. Lahille Note on the phagocytes of Argentine birds https://doi.org/10.56178/eh.v2i1.60 PDF (Spanish) 39-48
Lucas Kraglievich On Birds Fossils from the Argentine Republic https://doi.org/10.56178/eh.v2i1.61 PDF (Spanish) 49-55
Baldomero L. San Martín Mutual protection among birds https://doi.org/10.56178/eh.v2i1.63 PDF (Spanish) 57-58
Adolfo Renard Notes on Birds of Cañuelas (Province of Buenos Aires) I https://doi.org/10.56178/eh.v2i1.64 PDF (Spanish) 58-60
Alberto Castellanos The diet of some hummingbirds https://doi.org/10.56178/eh.v2i1.65 PDF (Spanish) 60-61
Juan B. Daguerre Observations on the "Metopiana peposaca" and "Heteronetta atricapilla" Ducks https://doi.org/10.56178/eh.v2i1.66 PDF (Spanish) 61-62
