376 NATURAL SCIENCE [December 1898 



that lateral notochords, similar to those in Actinotrocha, are found in 

 addition. The subneural gland, according to our author, is the same 

 structure as that in Ascidians, and probably corresponds to the hypo- 

 physis in Vertebrata and the proboscis-vesicle (' Herzblase ' of Spengel) 

 in Balanoglossus. Mr Harmer puts the contrary view very fairly and 

 clearly, but he is evidently at a loss to explain the alleged lateral 

 notochords, if they are not what our author believes them to be. We 

 hope that Mr Masterman will be able, in the absence of ontogenetic 

 proof of origin (for Cephalodiscus), to bring more exact histological 

 evidence to bear upon this vexed question, and to prove his point 

 more completely. 



Meanwhile, he has already done much in convincing us of the 

 relationship between Phoronis and Balanoglosms, by comparison with 

 Actinotrocha, and we are encouraged to hope for further light upon 

 those matters which remain doubtful. 



Change of Addkess 



Once again Natural Science changes its address, and this time, not 

 the address only, but the editorial staff. The reasons for this were 

 given at length in our October number. They need not be repeated 

 here ; but we cannot omit to thank the numerous friends who have, 

 since then, extended to us sympathy, both publicly and privately. 

 We trust that all our subscribers, readers, and contributors will con- 

 tinue to support Natural Science, which, we have every reason to 

 believe, will continue to deserve their support. There will be no 

 change in the policy of the Eeview, no break in continuity, and no 

 lowering of the standard hitherto set before it. But those who wish 

 well to the future of this journal, should remember that it lies with 

 them to see that it has a future. Editors cannot edit unless there 

 are contributions of articles, notes, and news ; publishers cannot 

 publish if every reader reads the copy of a friend or of a library. 

 Send at once your contributions and your subscriptions for 

 Volume XIV. to the new editorial and publishing offices. The 

 address is — Mr Young J. Pentland, 11 Teviot Place, Edinburgh. 



And now the type-writer ceases for a moment to click, but the 

 hands remain on the key-board. The days may have been anxious 

 and the nights weary, but the work has brought us many interests 

 and many friends, and it is hard to withdraw from it. Yet the 

 last word must be written, and we write it with its oldest and fullest 

 meaning — " Good-bye." 



