London: E. and F. N. Spon, 1881. 1st separate printing. 19, [1 (blank)] pp. Text double column. Illustrated with cuts. 8vo. 9-3/4" x 6-1/2". Printed grey paper wrappers (lacks rear wrapper). Browning & chipping to front wrapper. Paper repair along spine & to front wrapper edges. Wiht a nod to the missing rear wrapper, an About VG copy. Item #43184
OCLC records 3 holdings, none in the US.
Rare pamphlet on the subject.