48 
New Scientific Processes and Inventions . [January, 
It is not applicable to wire or thin plates that have to be bent 
after treatment, as the coating chips off when bent to a sharp 
curve. 
The above account of the success of the process is based on 
the statements of the inventor and the testimonials he has 
received, in reference to which I may add that Prof. Barff, in his 
published accounts, has candidly admitted the failures of his 
first attempts and the defedts of early specimens, the remedying 
of which has been achieved by eighteen months’ exclusive devo- 
tion to experimental investigation of their causes and the means 
of remedying them. 
W. Mattieu Williams. 
