"While the foundations were being prepared, and until the barrack was constructed, the men ran other terrible risks every morning and night landing upon and leaving the polished surface of the reef. Five months during the summer was the working season, but even then many days and weeks were often lost owing to the swell being too great to permit the rowing boat to come alongside. The engineer relates that the work was 'a good lesson in the school of patience,' because the delays were frequent and galling, while every storm which got up and expended its rage upon the reef left its mark indelibly among the engineer's stock in trade. Cranes and other materials were swept away as if they were corks; lashings, no matter how strong, were snapped like pack-threads.
"Probably the worst experience was when the men on the rock were weather-bound for seven weeks during one season.... Their provisions sank to a very low level, they ran short of fuel, their sodden clothing was worn to rags....
"Six years were occupied in the completion of the work, and, as may be imagined, the final touches were welcomed with thankfulness by those who had been concerned in the enterprise."
It was in meteorological researches and illumination of lighthouses, however, that Thomas Stevenson did his greatest work. It was he who brought to perfection the revolving light now so generally used.
In spite of this and other valuable inventions his name has remained little known, owing to the fact that none of his inventions were ever patented. The Stevensons believed that, holding government appointments, any original work they did belonged to the nation. "A patent not only brings in money but spreads reputation," writes his son, "and my father's instruments enter anonymously into a hundred light rooms and are passed anonymously over in a hundred reports, where the least considerable patent would stand out and tell its author's story."
He was beloved among a wide circle of friends and the esteem of those in his profession was shown when in 1884 they chose him for president of the Royal Society of Edinburgh. To the general public, however, he remained unknown in spite of the fact that "His lights were in all parts of the world guiding the mariners."
CHAPTER II
ROBERT LOUIS STEVENSON
"As from the house your mother sees
You playing round the garden trees,
So you may see, if you will look
Through the window of this book,
Another child, far, far away,
And in another garden, play."