65 
of the caves from good roads, but the wider use of this material would 
not only be beneficial in crop production but would furnish soil ele- 
ments usually supplied from expensive imported fertilizers. 
The following lists give the name or owner of each cave visited, its 
location, and the amount of guano of all kinds it is estimated to con- 
tain. The estimates are believed to be conservative and their 
aggregates do not by any means include all the possible supplies of 
the island. 
Approximate tonnage of guano in Porto Ricayi caves. 
Name of cave or owner and location. 
La Tuna, La Tuna, Cabo Rojo 
Los Chorros, Cotui, San German 
Guaniquilla No. 1, Guaniquilla, Cabo 
Rojo 
Guaniquilla No. 2, Guaniquilla, Cabo 
Rojo 
Boquilla, Tierras Nuevas, Campo Alegre 
Alta Gracia, El Coto, Manati 
La Laguna, El Coto, Manati 
Los Santos, El Coto, Manati 
Central Carmen, Rio Abajo, Vega Baja. 
Miranda, Rio Arriba, Vega Baja 
Hacienda Juanita, between Mayaguez 
and Las Marias 
La Oscura, Rosario, San German 
El Mureielago, Rosario, San German. . . 
El Colorado, Rosario, San German 
El Convento, El Cedro, Penuelas 
Mapancha. El Coto, Penuelas 
Pascual, El Cedro, Penuelas 
El Jaguey, north of Guanica Centrale... 
El Homo, north of Guanica Centrale. . . 
Santa Rita, south of railroad station 
La Ballena, foot of hillssouth of Guanica 
Centrale 
Caja de Muertos No. 1, northeast of light- 
house 
Caja de Muertos No. 2, northeast of light- 
house 
La Majina, Limon 
Lucero, Cabachuelas, Morovis 
Achotillo, Cabachuelas, Morovis 
San Miguel, Cabachuelas, Morovis 
La Chiquilla, Cabachuelas, Morovis 
Oscura, Cabachuelas, Morovis : . 
Capa Prieta, Cabachuelas, Morovis 
Pablo Clas, Cabachuelas, Morovis 
Amoimt 
of 
guano. 
Tans. 
333 
433 
48 
449 
441 
10 
128 
17 
35 
221 
60 
48 
110 
110 
924 
483 
439 
16 
12 
127 
21; 
Name of cave or owner and location. 
Amount 
of 
guano. 
414 
224 
Toronja, Cabachuelas de Torrecilla, 
Morovis 
Cerro Hueco, Cabachuelas de Torrecilla . 
Morovis 
' De los Puercos, Cabachuelas, Morovis. . 
Alta, Cabachuelas, Morovis 
Archilla, Cabachuelas. Morovis 
I Escalera, Cabachuelas, Morovis 
j Convento, Hato Vieio Poniente, Ciales. 
Oscura, Sumidero, Aguas Buenas 
Clara, Sumidero, Aguas Buenas 
Del Rio, Sumidero, Aguas Buenas 
Biafara No. 1, Miraflores, Arecibo 
Bernardo Mendez, Bayaney, Hatillo. . . 
Vilella, Yeguadilla, Hatillo 
Olio Oscuro, Santiago, Camuy 
Ludovino Suarez, Arenales, Aguadilla.. 
California, Centro, Moca 
Rafael Suarez, Centro, Moca 
Cuchilla, Cuchilla, Moca 
El Jobo, Arenales Bajos, Isabela 
Mureielago, Galateo Alto, Isabela 
Juan Eusebio Acevedo, Galateo Alto, 
Isabela 
Juan Bautista Perez, planas, Isabela 
Chito Perez, Planas, Isabela 
Pajita, Callejones, Lares 
Los Crazes, Callejones, Lares 
Jose Maria Girao, Lares, Lares 
Jesus Torres. Lares. Lares. , 
Callo, Villalba Arriba, Juana Diaz 
Naranjo, Naranjo, Juana Diaz 
Los Santos, Vega Redonda, Comerio 
La Mora, Vega Redonda, Comerio 
Guaraguao, Vega Redonda, Comerio. . . 
Tons 
Total. 
170 
139 
51 
35 
611 
112 
50 
50 
201 
405 
121 
976 
33 
100 
50 
100 
172 
447 
133 
214 
50 
40 
30 
100 
20 
110 
212 
285 
30 
16,141 
