1951. Second Edition. 36 pages. Pictorial paper cover with black lettering to front. 3 Fold out black and white photographic plates to back. 1 graph and 1 illustration. Pages and binding are presentable with no major defects. Minor issues present such as mild crinkling to gutters, lightly folded pages and tanning. Overall a good condition item. Paper cover has mild edge wear with light rubbing and curling of corners. Some light marking and sunning causing discolouration. Reading creases to both covers.