Marsh.— Food and Thyroid Tumor 19 



and this with some difficulty, by transplanting a piece of 

 the actual cancer, as illustrated in the lower animals- 



f^u-, 1 * l iaS t0 be int0 an animaI of the same species.' 

 While there is the widest difference of opinion concern- 

 ing the cause or causes of cancer, nobody at all— not 

 even those who think it caused by a parasite— thinks it 

 is contagious, or "catching," after the fashion of our 

 known infectious diseases. It is proper to say that fish 

 cancer is not contagious. Careful experiments show that 

 they do not catch it from each other even by the closest 

 association. Of course, no one need hesitate to catch 

 handle, buy, sell or eat fish of any kind on account of 

 cancer. Fish are always eaten cooked. I have eaten 

 trout with thyroid tumors, and the results were exactly 

 hke those from eating trout without thyroid tumors 

 They even taste exactly the same. I would eat the 

 tumors themselves and not without hope of finding a 

 new delicacy, were it not that they are too valuable for 

 other purposes. 



discussion. 



raSSS ?? r oS * * sawn: 



S ° aCt £ ° re L readil y and °" more fi^. The fish were kept In 



EL * extent. They were fed no insects, nothing but flour of 1 

 low grade not quite white. It is not whole wheat ground up but it 

 has a small amount of the hull of the grain P ' 



Mr Titcomb: Was the flour cooked, and do you think it would be 

 advisable to mix raw flour with liver ? 



Mr. Marsh.. The flour is cooked. I asked the fish culturist about 



TgTvU th "S Hlt \l th °^ ht there would be a mechanS d ifficuUv 

 in giving the mixture the proper consistence to feed the fish 



to^^SST " " Pr ° bable that the ™ «™ ™*> be abso- 

 „ M «- Havford, of New Jersey: The newspapers have given so much 

 publicity to certain scientific articles that our correspondence file, 

 show that there has been considerable alarm over ?he pCbiaty tha 



b tZfu ed e th fl \ U V f hUman Can . CCr - Con ^uently it P is plSSng to 

 De reassured that there is strong improbability that cancer of human 

 beings can be derived from hatchery-bred trout. 



