was then obtained, and a further study of the subject by a most acute and practical engineer, Mr. Boyden, led to various improvements upon Mr. Fauneyron's model, by which his experiments indicated the high duty of 88 per cent.

The most conspicuous addition made by Mr. Boyden was the diffuser.

CARVALHO, CLAIRE. Anonymous letters, by Claire Carvalho and Boyden Sparkes.

Crime in ink, by Claire Carvalho and Boyden Sparkes.

By Claire Carvalho and Boyden Sparkes.

Claire Carvalho (A); *; R174584. Happiness and handwriting, by Claire Carvalho and Boyden Sparkes.

How Dreyfus was saved, by Claire Carvalho and Boyden Sparkes.

How handwriting convicts, by Claire Carvalho and Boyden Sparkes.

Claire Carvalho (A); 30Jul56; R174580. Where there's a will, by Claire Carvalho and Boyden Sparkes.

SEE Sparkes, Boyden.

SPARKES, BOYDEN.

Hetty Green: a woman who loved money, by Boyden Sparkes and Samuel Taylor Moore.

Hetty Green: a woman who loved money, by Boyden Sparkes and Samuel Taylor Moore.

In collaboration with Boyden Sparkes.

In collaboration with Boyden Sparkes.

Educational Testing Service (PWH); 4Oct67; R419142. SPARKES, BOYDEN.

SEE SPARKES, BOYDEN R. EASLEY, RAY K. Living chemistry.

SEE SPARKES, BOYDEN.

SEE Sparkes, Boyden.

SPARKES, BOYDEN.

Hetty Green: a woman who loved money, by Boyden Sparkes and Samuel Taylor Moore.

Hetty Green: a woman who loved money, by Boyden Sparkes and Samuel Taylor Moore.

BOYDEN, MARY ELLEN VORSE.

SPARKES, BOYDEN.

SEE SPARKES, BOYDEN.