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Liquid media :— 
1, Standard solution + 3% glucose.—The best growth of all 
the liquid cultures took place in this medium. The medium was 
entirely filled, and in eight days the culture was of a pale-pink 
colour. Conidia were then numerous. After two months there 
were pale cream patches amidst a general pale pink-gray shade. 
Colourless chlamydospores were produced in mumbers, singly or- 
in groups of two and three. 
2. Standard solution -+ 3% saccharose.—The mycelial 
growth was at first white, and, later, on the surface of the medium, 
compact, and of a faint pink colour, with concentric slightly- 
raised zones. Creamy patches occurred. Micro- and macro- 
conidia were formed in great numbers. The colour of the culture 
deepened, and the subaerial mycelium was of a fairly deep pink 
after two months. Chlamydospores were formed as in No. 1. 
3. Standard solution + 3% maltose.—The growth in the 
medium was dense and white, and on the surface a pale yellow 
colour. The aerial mycelium was small in amount, but micro- 
conidia were very numerous. Later the whole culture became 
pale yellow or creamy, of the same colour as the patches in Nos. 1 
and 2. All three spore forms were produced. 
4. Standard solution + 5% glycerine.-—The growth was 
white and dense within the medium. The aerial growth was 
sparse and white at first, becoming pale salmon-pink after two 
months. The colour persisted better in this culture than in the 
others. The three spore forms were found. 
5. Standard solution + 5° gum acacia.—The growth was 
strong and white. The white colour persisted after two months, 
especially in the compact aerial mycelium, Microconidia and 
chlamydospores were produced in numbers, but macroconidia 
were very scarce and smaller than usual. 
6. Standard solution + 1 % peptone.—The submerged growth 
was small, flaky, and of a dirty white colour. The superficial 
growth was very sparse and colourless. No colour developed 
after two months. No macroconidia were found. Chlamydo- 
spore formation had only begun after two months. 
7. Standard solution + 1% asparagin.—The surface growth 
was larger than in Nos. 4 and 6, at first faintly pink and, later, 
white with very pale yellow patches. Only microconidia were 
produced. 
8. Standard solution + 1-5 % citric acid.—Growth consisted 
of a few small flocculent masses which did not develop any colour. 
No spores were found. 
9, Standard solution -+1%% sodium carbonate.—One very 
small submerged flocculent colony resembling those of No. 8 was 
visible after one month. No conidia were produced, but after 
two months chlamydospores were numerous. 
Solid media :— 
10. Normal potato (boiled in distilled water)—Growth was 
rapid, and in a few days the plug was wholly. covered. The 
