MARINE BIOLOGICAL STATION AT PORT ERIN. 51 
_ to let the sea-water tap run through his net day and night in 
_ order that he might have living plankton to examine. 
Murray was not only an investigator of special problems, 
_ but we owe to him much synthetic work, in which he gathered 
together the results of many observations and put them in 
the form of short conclusions or statistical statements. Some 
of these were published in the form of useful maps and charts, 
_ such, for example, as the map showing the 57 “ deeps,” or 
_ parts of the ocean in which soundings of over 3,000 fathoms 
have been obtained. Most of these deeps (32) are in the Pacific, 
including the deepest soundings of all, which extend down to 
over six English miles. 
At the meeting of the British Association held at Ipswich 
q in September, 1895, a meeting of contributors to the 
“Challenger ” Reports was held, at which the then President 
of the Zoological Section (W. A. Herdman) presided, and 
about fifty biologists or oceanographers, either attended or 
wrote expressing their concurrence in the objects of the 
meeting. It was then proposed and resolved “that this 
q meeting of those who have taken part in the production of the 
_ ‘Challenger’ Reports agrees to signalise the completion of 
_ the series by offering congratulations in some appropriate 
form to Dr. John Murray.” Eventually this congratulatory 
offering took the form of an address in an album, containing 
the portraits and autographs of all the ‘‘ Challenger ’”’ workers, 
with an illuminated cover and dedicatory design by Walter 
Crane. This book was afterwards reproduced for the con- 
tributors in the form of a thin quarto volume, which forms a 
_ very interesting record of the completion of the work con- 
nected with the “ Challenger” expedition. 
. Dr. Murray himself provided a very pleasing memento 
_ of the conclusion of the great work by having a handsome 
~ medal designed and struck, an example of which was presented 
to each of the authors of “ Challenger’ Reports. The medal 
