Well aware of mathematics and its ability to study complex ocean processes and phenomena, JM Shokalsky never turned it into an end in itself, which, unfortunately, more and more common in articles of mathematicians, not always Oceanography and knowledgeable do not understand its content and objectives. M. Shokalsky implacable opponent of the work of this kind and always paid attention to the inanity of his students and the practical inapplicability of findings found for the contrived conditions. To assess the reliability of large-scale oceanographic generalizations, such as maps of temperature and salinity at the surface of the oceans, we have made a careful comparison of maps YM Shokalski with the latest edition of Time Marine Atlas maps. The discrepancies were so minor that there was no need to celebrate. In the book, quite objectively specified merits of foreign researchers and capital works on oceanography, published at different times in many countries. But true love and deep patriotism, which describes the achievement of Russian sailors and scientists have great educational value and deserve the highest praise.

It is in this book the reader will find a brief but heartfelt words: "The Russian people should know and remember what made famous by previous generations, and proud of it and in turn allow the right and the descendants of the same attitude and to themselves. " 'Oceanography' M. Shokalski when reprinting is not subject to any changes, but fixes bugs typos and obvious obmolvok. Spelling as possible close to the modern. However, some older figures of speech (so, than, kopm. Etc.) and punctuation, since they could change in many cases lead to a distortion the author's thoughts are reserved. Therefore, the proposed second edition of Labour M. Shokalski identically to the first and a scientific paper that can be referenced as the first edition in 1917