_ 37 — AUSSGHUSS - JULI 1902 - ANLAGEN 



6) Both micro- and macroplankton are to be examined for as many classes 

 of plants and animals as possible and the relative abundance of each species to be 

 indicated by the sign c c c, in case the species form the principal mass, rr in case 

 one or two specimens have been found in one slide, by intermediate sign or 

 noted c c^ c, -\- , r. 



7) The original lists are to be delivered to the Bureau of the International 

 Council, at latest 3 months after the periodical cruise. 



8) For pubhshing the results the Bureau of the International Council has to 

 provide that all observations concerning every species are mapped out and the 

 area of distribution, with due consideration of the frequency, indicated in longitude 

 and latitude. 



9) In case any observer wishes plankton for special purposes, for instance 

 for quantitative determinations or chemical analyses he has to send to the Bureau of 

 the International Council a special programme which must be sent to the committees 

 of the different nations. 



