153 GRIFFITHS, A. B.— A Memoir detailing some Minor 

 Researches on the Action of Ferrous Sulphate 

 on Plant Life. 



Chem. News. Vol. L, (1884), p. 167. 



A. 0.20 per cent solution prevented the germination of Mus- 

 tard. 



B. 0.15 per cent solution grew large and healthy plants. 



C. 0.10 per cent solution plants grew well but not as well as in 

 "B." 



D. 0.05 solution plants grew well but not as well as in "B." 



153a GRIFFITHS, A. B,— On a Fungus Disease in the Roots 

 of Cucumis sativa. 



Proc. Roy. Soc. Edin. Vol. XV, (1888), pp. 403-410. 



Nodular growths on the roots of the cucumber due to the fun- 

 gus Ustilago cucumis. The spores and hyphae of this fungus 

 are destroyed by Sulphate of Iron. 



Cucumber seed soaked in a one-tenth per cent solution of SofI 

 and the soil watered with the same strength solution before the 

 seed was planted, fungus did not develop. 



When the disease had taken fairly hold of the plants treatment 

 with SofI completely destroyed the fungus and this without in- 

 jury to the cucumber plants. 



153b GRIFFITHS, A. B.— The Diseases of Crops and their 

 Remedies. G. Bell & Sons, London. 



154 GRIS, E. — D'l'action d. compos, ferrug. s. I. vegetation, 



1843 u I 844- 



155 GRIS, A. — Recherches miscroscopiques sur la chlorophylle. 



Annal. d. Scienc. naturell., (1857), IV. Ser., T. 7, p. 201. 

 Completing the work of his father. 



156 GUILLAMONT, A.— Essai de lutte contre le phylloxera. 



Jour. Agr. (Paris), T. I, (1883), p. 73. 



Centbl. Agr. Chem. (1883), S. 272. 



Used for many years with good results 

 a "fertilizer insecticide" composed of: 



S. of 1 10 parts 



Wood Ashes 10 " 



Coal Tar 2 " 



