JOSIAS CHRISTOPHER GAMBLE 59 



chlorine from salt, manganese, and sulphuric 

 acid. 



Advancing years and declining health told 

 upon Gamble, and in the year 1841 he was 

 compelled to obtain assistance in the superin- 

 tendence of the works of Gamble and 

 Crosfields. He selected James Shanks, a 

 Scotch engineer, who was born at Johnstone, 

 near Glasgow, and whom Gossage had 

 brought to Lancashire to erect and superin- 

 tend the plant of his various patent processes. 

 James Shanks proved himself a most capable 

 man, and when in the year 1845 the partner- 

 ship between Gamble and the Crosfields was 

 dissolved, the Crosfields retaining the business, 

 James Shanks was made a partner in the 

 new firm of Crosfield Bros, and Co., his 

 department being the practical management 

 of the works, whilst Simon Crosfield continued 

 to direct its financial affairs. Shanks con- 

 tinued to be a partner as long as he lived, 

 and his energetic and careful management 

 largely contributed to the repute and success 

 of his firm; not until some time after Shanks's 

 death, and after the retirement of Mr. John 

 Brock, whom he had trained, did Crosfield 

 Bros, and Co. disappear from amongst the 

 chemical manufacturers of Lancashire. 



