PREFACE. 



AAioNG the unpublished works left by my late predecessor, G. M. 

 R. Levinsen was found a manuscript on the bryozoa collected 

 by the Danmark Expédition at the north-east coast of Greenland. 

 Of this manuscript there is a fair copy of only the smaller portion, 

 while of the latter and greater part only a rough copy exists. 

 Moreover 6 plates for this paper, engraved in copper and already 

 printed, were found. 



As the committee for the publication of the scientific results of 

 the Danmark Expedition, after having defrayed the expense of prin- 

 ting the 6 mentioned plates, greatly wished to get Levinsen's paper 

 printed, I agreed to offer my co-operation. From the rough copies 

 I gathered, as far as possible, a complete manuscript, and I took 

 great pains to interpret Levinsen's handwriting correctly, which, 

 during the latter years of his life, had become somewhat illegible. 



Extremely valuable assistance was rendered . me by the well- 

 known Norwegian Zoologist Dr. O. Nordgaard of Trondhjem, who, 

 at my request, kindly undertook to read the 2nd proof of the 

 paper, whereby he solved various questions as to which I was in 

 doubt. But where Dr. Nordgaard's assistance has been of the 

 greatest importance is in his preparation of an explanation of the 

 plates which was entirely lacking from Levinsen's hand, only the 

 name of the species being given on the original drawings, while 

 nothing was said as to what the drawings were meant to illustrate. 

 In this way the explanation of the 6 plates is entirely due to Dr. 

 Nordgaard, and thanks to his competent assistance access to an 

 understanding of Levinsen's excellent drawings is also possible. — 

 For all good help in this matter I hereby offer Dr. Nordgaard 

 my sincere thanks. 



It is easy to see that the paper now before us is unfinished; 

 thus, in the text, mention of the species illustrated on PI. XXIV 

 is entirely wanting. But its usefulness and value is guaranteed 



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