•43 



r; R () r !• !■. 



Animals which concern Man as being destructive to his 

 worked-up Products of Art and Industry, such as his 

 various (A) Buildings and larger Constructions and 

 Habitations, (B) Furniture and Books, Drapery and 

 Clothing, (C) Food and Stores. 



SUB-fJIJorP A. 

 Teredos and Canadian Timber. 



A communication was received on 23rd NovemlKir, 1901, from 

 the ImiK'rial Institute in refjanl to the wodd-borin*,' T«.'red(»s and 

 Canadian tini1>er {Alncs canadensis). In this commiuiicatinn the 

 following was stated: — "This iH'jtartment has supjilied full infor- 

 mation with ifference to the general ihamoteristics of the wo<kI and 

 its mechanical j»r«»i»erties. It a])pears, howover, that other wohI so 

 employed in South Africa is liable to l>e attacked by the Teredo 

 Worm. The Canadian wood is known not to l>e readily attacked by 

 wonns or in.sects of any <le.scription in Canada, but the questicm is, 

 dcx's this particular worm occur in Canada?" The following 

 replie.s were sent to the Institute : — 



(1.) llie Teredo worm, one of the mollusca, attacks all manner of 

 W(km1. Canadian fir. judging from the .specimens so fiv([uently 

 washed up on the .shores of Kiigland, N<»rway. etc., .seems very liable 

 to the attack of Ten-do. One species, Trrolo mrgotara, Haidey, 

 found in Englauil, lH»th on fi.xed, lloating an<l drift timU-r (esjH-cially 

 in Canailian fir), <»ccurs in America. Stimjison descril>ed it as 

 {T. tfilata(a) infe.sting fi.\e<l wcmmI and harlK)ur Imoys at Lynn. New 

 P^ngland. Tryon states that this species extends from Ma.s.saclnisetts 

 to South Carolina — it also (x-curs in (Ireenland and belaud — .so has 

 a ver}' wide range, as one W(»uld ex|)ect, U'ing trans|Mirted on floating 

 y>\HM\, aided by the Ctulf Stream. 



I do not know any exact l<K-alities to give for Tetedo in Canada, 

 but the one I nu-ntion ami others <M'cur iheix'. 



It is suq)rising t<» find that Ahifs rayunfmsis is n«»t subject to 

 Ixtringmollu.sca in Canada, as drift wckhI of that fir ap|»oars |wrticularly 

 prone to the attack of llie ikjsI. 



