IN the course of some experiments on Amoebae suggested to me by Dr. P. Couillard of Brussels, I have discovered an easy method of procuring clean spores, newly hatching and developing specimens of the large free-living Amoebae (proteus, lescherae, discoides, kerrii). These stages are difficult to separate from ordinary stock cultures of the Amoebae. Hence, I am frequently asked for spores by teachers whose pupils are interested in the life-history of the large Amoebae.