Vol. 19 (1-2)
Jul. - Dec. 1971
CONTENTS / CONTENIDOS
Peces de los grandes lagos de Nicaragua
Astorqui, I.
Notes on fishes from the Gulf of Nicoya, Costa Rica
Erdman, D.S.
Studies on the pulmonary surface-active lipoprotein. II.Biophysical characterization of its peptide moiety
Jiménez, J.M.
Weight losses and urine osmolarity in the hypophusectomized-adrenalecxtomized albino rat
Morales, O.
Notas sobre carófitos de Costa Rica
Gómez, P., L.D.
Population dynamics of Telenomus fariai (Hymenoptera:Scelionidae), a parasite of Chagas' disease vectors.V.Parasite size and vital space
Rabinovich, J.E.
Palmacites berryanum, a new palm fossil from the Costa Rica Tertiary
Gómez P., L.D.
Comparative post-natal growth in five species of the genus Sigmodon.I. External morphological character relationships
Jiménez J., J.
Immunoelectrophoretic comparison of Trypanosoma vespertilionis and Trypanosoma cruzi
Bice, D.E. & R. Zeledón
Effects of glucose, time and temperature on bacterial growth in urine
De la Cruz, E., C. Cuadra & J.A. Mora
Tres serpientes albinas de Nicaragua
Villa, J. & A. Rivas
A new subspecies of the squirrel Sciurus variegatoides Ogilby from Costa Rica
McPherson, A.B.
Métodos para estudios embriológicos de Triatominae
Carcavallo, R.U. & Maria A. Goñi
Cultivation and transformation of hemoflagellates. A review
Zeledon, R.
Aracnidismo por Phoneutria en Costa Rica (Araneae: Ctenidae)
Trejos, A., R. Trejos & R. Zeledón
Investigación de hemoglobinas anormales en población de raza negra costarricense
Saenz, G.F., G. Arroyo, J. Jiménez, A. Gutiérrez, M. Barrenechea, E. Brilla & E. Valenciano