- 95 —, 



cali these cliaracteristic liaeiiioc)'aiiiii cr^'stals " projectiles " of 

 haemocyanin. They are characteristic to the ii.ieiiiocyanin of Octo- 

 pus vulgaris. With the haemoc3'anin of Octopiis macropiis and E- 

 ledone moscliata I bave not obtaiiied these charateristical crystals. 

 2'. The haemocyanin of Octopus vulgaris iiiay also crystallize 

 n needles as may be seen in fii^-. 3. 





Fig. 3. — Haemocyanin-crystals (needles) from the blood of Octo/Jiis vulgaris. 



3. When the solution of haemocyanin is very diluted , the 



Fig. 4. — Haemocyanin-cr) stals from ti e dihited blood of Octopus vulgaris. 



haemocyanin crystallizes frequently] in fine needles grouped in 



