Tun. 1 
YI. TUNICATA. 
BY 
Alice L. Embleton, B.Sc. 
CONTENTS. 
Page 
Introduction.1 
I. Titles.2 
II. Subject-Index. 
a. Anatomy.4 
b. Embryology.4 
c. Geographical Distribution 4 
III. Systematic.4 
INTRODUCTION. 
The most important contributions during the year appear to be the 
following: Seeliger (22) further addition to Bronn’s Klassen etc.: 
Schultze (21) on the circulation and pulse in Salpse : Ritter (19), of 
considerable interest with regard to the Ascidians of Alaska: Dahlgrun 
(5 & 6) information on the structure of the excretory organs. Selys-Long- 
champs (23 & 24) has contributed some excellent work on the development 
of the heart, pericardium and epicardium in Cionci , of the prostigmata 
in Ciona and Ascidiella , and of the branchiae in Corella. 
