376 NATURAL SCIENCE [December 1898 
that lateral notochords, similar to those in Actinofrocha, 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 Balanoglossus, by comparison with 
Actinotrocha, and we are encouraged to hope for further light upon 
those matters which remain doubtful. 
CHANGE OF ADDRESS 
ONncE 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 Review, 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.” 
