كتب ذات صلة

Untersuchungen �uber die Spermatogenese von Paludina vivipara

Three new land shells from Peru.

Papers on North American Helicidæ, and on the geographical distribution of West India land shells.

New Caledonian land and fresh-water snails an annotated check list.

• Science on stage 1 & 2 : demonstrations & teaching ideas
  
• Physics on stage 3 : demonstrations & teaching ideas
  
• Specimens of Arabian poetry
  المؤلفون: Carlyle, Joseph Dacre