SUGGESTED LABORATORY EXERCISES 439 



HiLDEBRAND, E. M.: Techniques for the isolation of single microorganisms, Bolan. 



Rev. 4: 627-664, 1938. 

 HoRSFALL, J. G.: Fungicides and Their Action, Chronica Botanica Co., Waltham, 



1945. 

 Macrae, R.: Interfertility studies and inheritance of luminosity in Panus stypticus, 



Can. Jour. Research, Sec. C, 20: 411-434, 1942. 

 RiKER, A. J.: The preparation of manuscripts for Phytopathology, Phytopathology 



36:953-977, 1946. 

 RoBBiNs, W. J.: Growth substances in agar, Am. Jour. Botany 26: 772-778, 1939. 

 RoBBiNs, W. J., and V. Kavanagh: Vitamin deficiencies of the filamentous fungi, 



Botan. Rev. 8: 411-471, 1942. 

 Steinberg, R. A.: A study of some factors in the chemical stimulation of the growth 



of Aspergillus niger, Am. Jour. Botany 6: 330-372, 1919. 

 Thom, C, and K. B. Raper: Manual of the Aspergilli, The Wilhams & Wilkins Com- 

 pany, Baltimore, 1945. 



