J. A. C. NICOL 317 



in the orderly book of nature, and cannot escape the elegancy of her 

 hand in other correspondencies." {Garden of Cyprus). 



ACKNOWLEDGMENTS 



I acknowledge with gratitude a fellowship grant from the John Simon 

 Guggenheim Memorial Foundation, enabling me to visit the United States 

 of America. Some part of the research mentioned in this paper has been car- 

 ried out at the Scripps Institution of Oceanography, to which I am grateful 

 for certain facilities. I should like to record my thanks to the National 

 Institute of Oceanography (United Kingdom) for allowing me to take part 

 in a research cruise of the R.R.S. Discovery II. The cost of part of the 

 equipment used in my research was defrayed from a grant-in-aid of sci- 

 entific research through the Royal Society. 



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