Jordan Lloyd

In 1912, Jordan Lloyd completed the Part II Tripos in zoology and obtained a B.Sc. (London), but she found she was more interested in the functional and dynamic side of biology than in the structural studies. Following her interest, when she took up research as a Bathurst Student (1912-1914), her topic was the physicochemical studies of proteins under Hardy, who had earlier mentored Willcock. Then in 1914, Hopkins invited her to join his group as a Newnham Research Fellow. With the outbreak of war, Jordan Lloyd worked on culture media for meningococcus, one of the anaerobic pathogens involved in trench diseases, and on the causes and prevention of ropiness in bread. For this research, she was awarded a D.Sc. (London) in 1916. 

By 1921, her original work on proteins led to an invitation to join the British Leather Manufacturers Research Association, a move which, according to Marjory Stephenson, probably robbed this country of a distinguished professor of biochemistry. 59(a) As a final contribution to her original research field, Jordan Lloyd wrote the classic work The Chemistry of Proteins, published in 1926, for which Hopkins wrote the introduction (a second edition, co-authored with Agnes Shore, appeared in 1938).60 

It was Jordan Lloyd who turned leather manufacture from a craft industry into a scientific process. In 1927, she was appointed Director of the Association, a post in which she served until her death in 1946. For a women to head such a large scientific organisation was an amazing accomplishment for the period. Her predecessor, Robert Pickard,61 commented in his obituary of her  

Among scientific women of her time she perhaps was unique in that to the successful management of a large research organization she added the capacity to delegate its routine administration whilst retaining control, and at the same 

In 1939, Jordan Lloyd was awarded the Fraser Muir Moffatt Medal by the Tanners Council of America for her contributions to leather chemistry. Her change in career direction did not diminish her productivity, and over her lifetime she authored or co-authored over 100 scientific papers, together with planning and contributing to the three-volume Progress in Leather Science, 1920-45, the classic textbook of leather technology. 

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A keen mountaineer, Jordan Lloyd achieved the distinction of making the first ascent and descent in one day of the Mittellgi ridge of the Eiger. Her mountain-climbing exploits led to her election to the Ladies Alpine Club. Later, she adopted competition horse riding as her main interest, which caused her friend Stephenson to comment in both those pursuits she excelled and certainly the element of danger encountered in them was not without its attraction to her. 59(a) She died of pneumonia on 21 November 1946. 

Bate-Smith, E. C. (1947). Obituary notice Dorothy Jordan Lloyd. Biochemical Journal 41 481-482. 

Smedley was not the only one to be chosen as the expectation for a woman chemist or biochemist. A 1929 article in the Journal of Careers18 held up Martha Whiteley (Chap. 3) as a role model while an article in the same journal in 193819 extolled Ida Smedley (Chap. 2), Marjory Stephenson (Chap. 8), Katherine Coward (see below), and particularly Dorothy Jordan Lloyd (Chap. 8) as the heights of careers to which women chemists and biochemists could aspire — but only those who were exceptional. 

In an interview in the Journal of Careers on the prospects for women in science in 1929, Jordan Lloyd made clear her beliefs that only the very best should consider an industrial career. She also described the perceived shortcomings of her own gender ... 

In her article titled Biochemistry as a Career for Women in the Journal of Careers, Dorothy Jordan Lloyd made it clear that the biochemical sciences were among the most demanding in preparation ... 

Cf. Symposium on Proteins, Amsterdam 1938, published in English Chem. Weekbl. (1939) D. Jordan Lloyd and A. Shore, Chemistry of the proteins, London 1938 A. Frey-Wyssling, Sub-mikroskopiseke Morphologie des Protoplasmas, Berlin 1938. 

Modifications of the theory as proposed by D, Jordan Lloyd (Ioc. cit.), do not conflict with the basic concepts. Other theories assuming an influence of hydration auli) or mutual repulsion of electric charges on the framework of the gel (Tolman) have been proved untenable by experiments of S. Gosh, J. chem. Soc., London 1928, p. 711. 

For amino-add content see Shore, Jordan Lloyd, Chemistry of the Proteins, 1938. 

Although gels must have been used since prehistoric times, the definition of a gel is still a matter of discussion [3]. In 1926 Jordan Lloyd [4] made her famous comment that ... 

Fig. 7.3 Members of Frederick Gowland Hopkin s research group in 1917. Standing George Windfield, Ginsaburo Totani, Sydney W. Cole, F.G. Hcpkins. Seated H.M. Spiers, Elfrida Cornish, Harold Raistrick, Elsie Bulley, Dorothy Jordan-Lloyd, Muriel Wheldale [Onslow]. Photograph courtesy of the Department of Biochemistry, Cambridge University.

Thomas Graham used the term gel in 1861 for the first time, and nowadays it is a common household item which is easily identified by the simple inversion test if the material is able to support its own weight without falling out when a pot is turned upside down, it is considered as a gel [6, 7]. However, as Dorothy Jordan Lloyd noted in 1926, gels are. . easier to recognize than to define. The generally accepted definition is that given by Flory in 1974, which is the next A gel is a two-component, colloidal dispersion with a continuous structure with macroscopic... 

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