Commerce reports. Supplement to Commerce reports, no. 5b-c, 8c, 10b, 15f, 19f-h, 23b, 40d, 44c, 52e, 55a, 67a, 75b. [Included in price of Commerce reports for subscribers.]. 44c. Guiana: British Guiana, by George E. Chamberlin; [Dutch Guiana, by J. S. Lawton].