MARINE BIOLOGICAL STATION AT PORT ERIN. 39 
world, is, however, embarrassing from the point of view 
of expense. Lithographic plates, such as most of these 
Memoirs require, are rather costly, and with the growing 
elaboration of the subject more detailed illustration 
is necessary. The Committee are therefore always very 
grateful for special donations and grants, such as have in 
the past enabled the Treasurer to meet the expenses of 
plates for several of the recently issued Memoirs. 
Further donations to provide for the illustrations of those 
still unpublished will be very welcome. 
The following shows a list of the Memoirs already 
published or arranged for :— 
. Ascip1a, W. A. Herdman, 60 pp., 5 Pls. 
. Carpium, J. Johnstone, 92 pp., 7 Pls. 
. Ecuinus, H. C. Chadwick, 36 pp., 5 Pls. 
. Copium, R. J. H. Gibson and H. Auld, 3 Pls. 
. Aucyonium, 8. J. Hickson, 30 pp., 3 Pls. 
. LEPEOPHTHEIRUS AND LEeRNzA, A. Scott, 5 Pls. 
. Lingus, R. C. Punnett, 40 pp., 4 Pls. 
. Puatce, F. J. Cole and J. Johnstone, 11 Pls. 
. Cuonprvs, O. V. Darbishire, 50 pp., 7 Pls. 
. Patretua, J. R. A. Davis and H. J. Fleure, 4 Pls. 
. ARENICOLA, J. H. Ashworth, 126 pp., 8 Pls. 
. Gammarus, M. Cussans, 55 pp., 4 Pls. 
. Anuripa, A. D. Imms, 107 pp., 8 Pls. 
. Lieta, C. G. Hewitt, 45 pp., 4 Pls. 
. AntEepon, H. C. Chadwick, 55 pp., 7 Pls. 
.QVAE 
XLV 
AVI NME 
XID 
Cancer, J. Pearson, 217 pp., 13 Pls. 
Precren, W. J. Dakin, 144 pp., 9 Pls. 
Evepone, A. Isgrove, 113 pp., 10 Pls. 
PotycHaEet Larva, F. H. Gravely, 79 pp., 4 Pls. 
Buccinum, W. J. Dakin. 
SABELLARIA, A. T. Watson. 
Sacitta, E. J W. Harvey. 
