Did you mean port Rico OR Puerto Rico?
Author(s): Stevens, Frank Lincoln, –1934 Title: The genus Meliola in Porto Rico. Place of Publication: Urbana Publisher: Univ. Illinois Press Date of Publication: 1916 Pagination: 86p. Note(s): (Forms No. 4, v.2., Illinois Biol. Monogr.) Language: English Type of Resource: Monograph Series/Volume/Page: Series 5/Volume 1/Page 615
Author(s): Tower, W. V. Title: Mosquito survey of Mayaguez. Subject(s): Mosquitoes Place of Publication: Washington Date of Publication: 1921 Pagination: 10p. Note(s): (Forms No. 20, Circ. Porto Rico Agr. Exp. Sta.) Language: English Type of Resource: Monograph Series/Volume/Page: Series 5/Volume 2/Page 862