Fig. 33. Sorting out dead trout eggs from the under-stream apparatus. 

 To ease the work, the inset sieve is slightly lifted and firmly clamped. 



Fig. 3A, Living eggs of the small marane (Coregonus albula) in 

 the eye-point stage. Diameter 2.2 mm. 



The fabric covering the frames is well moistened and packed with a layer of eggs 

 (in case or marines with two layers) in so close a fashion that a rolling of the eggs is 

 hardly possible. The frames are stacked one on top of the other and an empty frame is 

 inserted between each pile of five frames. A few empty frames — or moss- filled ones — 

 form the bottom of a pile which is topped by an en^aty frame of scmiewhat higher molding. 

 This frame has a lattice bottom packed with ice. 



The whole stack of frames is then carefully wrapped up in paper (impermeable one, if 

 possible). This package again is packed into a large wooden box, sufficiently large to 

 allow stuffing (all around) vdth chaff or sawdust or excelsior to a thickness of at least 

 7 centimeters. The box to be marked - "Live Fish Eggs", "This end up", "Eo not expose to 

 heat or frost", "Handle with care". In this v;ay, egjs from rainbow trout were safely ship- 

 ped from America to Germany. 



".Vhen unpacking the box, the eg-s of each frame are first carefully sprinkled with 

 water in order to accustom them to the new water and a different temperature. Only after 

 15 to 30 minutes are the egjs transferred to the incubators. 



118 



