Thomas Crellin and students at the Kodak Professional School, Shanghai, 1923

Tommy Crellin at the Kodak Professional School, Shanghai, 1923

Tommy Crellin and students at the Kodak Professional School, Shanghai, 1923

Students at the Kodak Professional School, Shanghai, 1923

General Laboratories, Bacteriological Institute, Caine Lane, Hong Kong

The Culture Medium and Sterilising Laboratory, Bacteriological Institute, Caine Lane, Hong Kong

The Serum Laboratory, Bacteriological Institute, Caine Lane, Hong Kong