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LETTER NO 27
: Oryzias javanicus
Brief description of the care and breeding of Oryzias javanicus (thought then to be a killifish, Parenti reclassified them and they no longer are) and an article on water chemistry and hardness.
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LETTER NO 28
: Egg development statistics
Some statistice on egg incubation times of the (few) killies that were kept in 1960. Note the SJO referred to here is known as OCC today.
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LETTER NO 29
: Recent crosses
Results of about a dozen or so crosses Scheel made.
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LETTER NO 30
: Information on Peat (or Breeding Annual Killies on Peat)
About "annual" killi eggs, how to breed using peat; how to separate and store eggs.
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LETTER NO 31
: The Genus Epiplatys
Very comprehensive article on the genus Epiplatys.
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LETTER NO 32
: Egg Shipments 1959
(Information about Letter_No_32 goes here)
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LETTER NO 34
: News about Killies
(Information about Letter_No_34 goes here)
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LETTER NO 36
: The Genus Procatopus
(Information about Letter_No_36 goes here)
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LETTER NO 37
: Egg Development in Aphyosemion sjoestedti (continued)
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LETTER NO 39
: Storing eggs of Cynolebias nigripinnis in mud
(Information about Letter_No_39 goes here)
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LETTER NO 42
: From letters received
(Information about Letter_No_42 goes here)
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LETTER NO 43
: Plants for Rainforest Tanks
(Information about Letter_No_43 goes here)
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LETTER NO 44
: The Temporary Hardness of Aquarium Water
(Information about Letter_No_44 goes here)
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LETTER NO 45
: Collaboration with H. Stenholt Clausen
(Information about Letter_No_45 goes here)
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