8 



with the history of the elevated coral reefs to which it was impos- 

 sible for me to give the necessary attention. I therefore gladly 

 availed myself of the proposition of Professor R. T. Hill of the 

 United States Geological Survey to make an extended examination 

 of parts of the coast of Cuba. The Director of the United States 

 Geological Survey was kind enough to grant him leave of absence 

 for three months. Professor Hill's expedition was most success- 

 ful. I have received from him an interesting Report on the Geol- 

 ogy of the Cuban Coast. This will be published in the Museum 

 Bulletin as soon as the necessary illustrations can be prepared. 

 An abstract of his observations has been published in the Sep- 

 tember number of the American Journal of Science. 



I have myself prepared for the Bulletin a Report of my last 

 winter's visit to the Bermudas. This will be published in the 

 same volume with the Report on the Bahamas. These two papers 

 are specially devoted to the geological history of the Bahamas and 

 Bermudas, and to the study of their coral reefs in connection with 

 those of Florida and the Caribbean Sea, as well as the living and 

 elevated reefs of the Cuban Coast. 



From Messrs. Charles Wachsmuth and Frank Springer we have 

 received the manuscript and plates of their Memoir on the Cri- 

 noidea Camerata of North America. This will form one of the 

 most important publications on the subject ever issued. The 

 authors have devoted years to the preparation of this magnificent 

 monograph. The beginning of the work dates back to the time 

 when Mr. Wachsmuth was Assistant at the Museum, having come 

 to Cambridge at Professor Agassiz's request to take charge of the 

 collection of Crinoids, of which the material brought together by 

 Mr. Wachsmuth constituted an important part. After leaving 

 Cambridge, Mr. Wachsmuth settled in Burlington, in the midst 

 of the richest field of Fossil Crinoids, and commenced a second 

 collection. He then became associated with Mr. Springer, and the 

 work interrupted more than twenty years ago was resumed, and 

 has just been brought to a happy termination. To complement 

 their own unrivalled private collection, the authors have been 

 supplied with material from all private and public collections of 

 the United States, and from many persons and public institutions 

 abroad. 



The Monograph is accompanied by 83 exquisite plates, drawn 

 under the supervision of the authors in their Museum, by Messrs. 



