Mémoires d'un révolutionnaire ([Reprod. en fac-sim.]) / Pierre Kropotkine ; trad... [de la version anglaise] par Francis Leray et Alfred Martin... ; [préf. par Georges Brandès]

Titre original : Memoirs of a revolutionist

Ultrastructure of the spermatozoon of the digenean Lecithocladium excisum (Rudolphi, 1819) (Hemiuroidea: Hemiuridae), a parasite of marine teleosts in Senegal

The present study describes the ultrastructure of the mature spermatozoon of Lecithocladium excisum (Rudolphi, 1819) (Digenea: Hemiuroidea: Hemiuridae) from the stomach of the marine teleost Scomber japonicus Houttuyn (Scombridae) captured in the Atlantic Ocean, off Dakar (Senegal). The ultrastructural organization of the spermatozoon of L. excisum follows the general model described in most digeneans. It presents two axonemes of the 9+'1' pattern of the Trepaxonemata, nucleus, mitochondrion and parallel cortical microtubules, among other characters. However, some particularities of the spermatozoon of L. excisum are (i) the presence of a membranous ornamentation not associated with cortical microtubules in its anterior extremity, (ii) the presence of a very reduced number of cortical microtubules located only in the ventral side of the spermatozoon and (iii) the absence of several structures described in most digeneans such as spine-like bodies and cytoplasmic expansions.

Ultrastructure of the spermatozoon of the digenean Lecithocladium excisum (Rudolphi, 1819) (Hemiuroidea: Hemiuridae), a parasite of marine teleosts in Senegal

The present study describes the ultrastructure of the mature spermatozoon of Lecithocladium excisum (Rudolphi, 1819) (Digenea: Hemiuroidea: Hemiuridae) from the stomach of the marine teleost Scomber japonicus Houttuyn (Scombridae) captured in the Atlantic Ocean, off Dakar (Senegal). The ultrastructural organization of the spermatozoon of L. excisum follows the general model described in most digeneans. It presents two axonemes of the 9+'1' pattern of the Trepaxonemata, nucleus, mitochondrion and parallel cortical microtubules, among other characters. However, some particularities of the spermatozoon of L. excisum are (i) the presence of a membranous ornamentation not associated with cortical microtubules in its anterior extremity, (ii) the presence of a very reduced number of cortical microtubules located only in the ventral side of the spermatozoon and (iii) the absence of several structures described in most digeneans such as spine-like bodies and cytoplasmic expansions.

Discours sur l'étude philosophique des langues : lu à l'Académie française, dans la séance privée... de décembre 1819 ([Reprod.]) / par M. le comte de Volney,...

Collection : Archives de la linguistique française ; 79

Papel de la historia en Une vie de Saint de Roger Martin du Gard

Roger Martin du Gard, como su héroe Antoine Thibault, nace en 1881, coincidiendo con los primeros años de la Tercera República. La bistotia de su tiempo, los acontecimientos que la configuran desempeñan un papel muy importante a lo largo de su obra. Martin du Gard es reacio a describir momentos históricos que no ha podido vivir directamente. Le gusta novelar sobre la base de hechos acaecidos en el tiempo en que vive. Así, todas sus obras publicadas se desarrollan teniendo como telón de fondo el acontecer histórico contemporáneo. Unicamente en una de sus primeras novelas inacabadas e inéditas, fine vie de Sainí, evoca la guerra con la que culmina el Segundo Imperio, que encuentra su fin en el desastre de Sedán. El ambiente social, los hechos históricos descritos en la ficción novelesca coinciden plenamente con los acontecimientos reales que tuvieran lugar durante la vida del autor.