11-12 July 1937, Prague, Czechoslovakia

I was puzzled about the river. Peg suggested the River Moldau. Inspiration. Of course. Moldau. Moldavia—Moldavites!—the first of the Tektites. Next day I went too see the collection of Moldavites at the National Museum here; it was glorious. Two huge fine cases with seven long rows each, 35 large, well selected specimens in each row. Seeing them in the mass gives one a better and a different idea of their story. I have the characteristic types: but all these were fine large specimens. Although they are very far from being as regular in form as the Australites, yet there is a very definite series of form types. Those I have are quite characteristic. The amount of etching and pitting and erosion generally is notable and all the kinds of pits, such as one gets in other tektites, are here abundantly. There were three Australite specimens also, very poor; three of Darwin Glass, one Billitonite, four from Cambodia and three from Annam. The Australites were from Lake Eyre. Among the Moldavites were the cusp shaped pieces of burst bubbles, irregular as in the Indo-Chinites, and much rarer than with the Indo-Chinites. I had a good eyeful of these, and it was very good, indeed.