Resumen en Inglés:

A case of ganglioneuroma in the neck of a girl sixteen years old first noticed at the age of fifteen months is reported. The tumor successfully removed at operation has the size of an orange and is in relation by its internal surface with the trachea, oesophagus and vertebral column. Anteriorly it is crossed by the left common carotid and internal jugular vein which are meanwhile dissociated. Although this suggests an origin from the pneumogastric nerve no convincing proof of such an origin was obtained.

Resumen en Inglés:

A study of and addicional collection of Argentine ixodidae is made on material send to the Author by Professor Salvador Mazza of Departamento de pathologia do Norte - Jujuy and Professor Doello Jurado of the Museu Rivadavia. There was examined 37 lots of Ixodidae. Among them there were found the nymph of Ixodes auritulus Nn. and 3 other species already known on the South American fauna and from which there was til yet no record in Argentine; they are Ixodes ricinus, Amblyomma parvum and Amblyomma pseudo-concolor.