84 THE LAST CRUISE OF THE CARNEGIE 



cruise, for the immediate use of hydrographers and oceanographic 

 workers ashore. This feature of our routine kept the other ob- 

 servers occupied throughout our stay ashore. 



For example, tables were drawn up showing the values of 

 declination, horizontal intensity, and inclination, as given by 

 the latest British, German, and American charts for the regions 

 traversed by the ship. Against these we tabulated the measure- 

 ments made on the voyage, so that errors in the charts might be 

 corrected in future editions. Differences of as much as 1?5 in 

 declination were discovered on the passage from Newport News, 

 with corresponding errors in the other elements. This serves to 

 emphasize the importance of repeated surveys of the earth's 

 magnetism, to determine the changes constantly taking place in 

 the distribution of this mysterious natural force. 



All of us had an opportunity for visiting the famous Marine 

 Biological Laboratory of the United Kingdom, located in Ply- 

 mouth. Dr. Allen, the director, generously put the facilities of 

 the laboratory at our disposal, and we had many occasions for 

 taking advantage of the invitation. Dr. Atkins, the chemist of 

 the group, offered many useful suggestions in connection with 

 our work. We had a chance to inspect their research vessel, the 

 Salpa, and to critically compare methods. The physiological 

 researches being made in Pylmouth impressed us as much as the 

 magnificent collections of marine life displayed in the buildings. 



We owe to Dr. Allen and Dr. Atkins two of the most delightful 

 evenings of the cruise. Both of these gentlemen symbolized in 

 our minds that genuine hospitality we found in almost every port 

 we visited. Dr. Allen invited the members of our party to a 

 dinner at the Grand Hotel, superbly situated, overlooking the 

 beautiful harbor. After the meal he escorted us through Old 

 Plymouth. We visited, among other places of interest, the 16th 

 century custom-house; the old Blackfriars monastery, now used 

 as a distillery; and the Mayflower stone beside the quaint fishing 

 harbor, marking the spot from which the Pilgrim Fathers set out 

 to the New World. 



Soon afterwards Dr. Atkins invited us to his home in St. 

 Anthony's Parish, Cornwall. Visits to private dwellings were to 



