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91. Morgan, T. H. The failure of ether to produce mutations in Drosophila. 

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92. Morgan, T. H. On the mechanism of heredity. Croonian lecture. Proc. Roy. 

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99. Muller, H. J. Variation due to change in the individual gene. Amer. Nat. 

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100. Muller, H.J. Recurrent mutations of normal genes of Drosophila not caused 

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104. Muller, H. J. Artificial transmutation of the gene. Science 66: 84-87. 

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105. Muller, H.J. The problem of genie modification. Zeitsch. Indukt. Abstamm. 

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106. Muller, H. J. The production of mutations by X-rays. Proc. Nation. 

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107. Muller, H. J. The measurement of gene mutation rate in Drosophila, its high 

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108. Muller, H. J. The gene as the basis of life. Proc. Internat. Cong. Plant Sci. 

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