MARINE BIOLOGICAL STATION AT PORT ERIN. 48 
Fig. 6G. 
Feel 
Fig. 7. 
Fie. 1. Sectional view of filter-box. Fic. 
Fig. 2. Hatching tank, seen from above. 
Hic. 3. Side view of hatching tank, show- Fia. 
ing two boxes in position, with 
oscillating bar raised. 
Fie. 4. One compartment of hatching Fie. 
tank, with box hinged in position, 
seen from above. 
5. Side view of tipping-box and 
frame. 
6. Hlevation of filter, tipping box, 
hatching tanks, and oscillating 
apparatus. 
7, Ground plan of hatchery and 
tank. Same scale. 
