Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 401-443

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 445-491

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 493-507

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 509-529

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 531-536

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 537-540

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 541-544

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 545-553

Published in Quarterly journal of microscopical science, in 1919, in volume 63, issue 252, pages 555-588

Published in Quarterly journal of microscopical science, in 1919, in volume 64, issue 253, pages 19-26

Published in Quarterly journal of microscopical science, in 1919, in volume 64, issue 253, pages 27-62

Published in Quarterly journal of microscopical science, in 1919, in volume 64, issue 253, pages 67-117