
 
        
         
		as 
 Introductory  Remarles. 
 relative  value  of  their  yield.  I t   was  therefore  not  always  easy,  to  
 “ sift  the  chafi  from  the  grain,”  when  these  notes  were  gathered  ;  the  
 remarks,  offered  in  this work, might  indeed  under  less  rigorous  restrictions  
 have been indefinitely extended;  and although the author has during  
 more than twenty years been watching also for industrial tests the plants,  
 introduced  by  him  into  the  Melbourne  Bot.  Garden,  and  has  during  
 nearly  as  long  a  time  of  travels  been  scrutinising the  circumstances  of  
 the  spontaneous  occurrence  for  vast  multitudes  of  species,  he  had  still  
 to  a  very  large  extent  to  rely  implicitly  on  the  experience  of  other  
 observers  elsewhere.  I t   may  also  a t  once  be  stated  here,  th a t  when  
 calculations  of  measurements  and  data  of  weights  were  quoted,  such  
 always  represent,  if  not  already  anyhow  absolute,  the  maximum  as  far  
 as  hitherto  on  record.  I t   was  not  always  found  easy,  to  determine  
 with  accuracy  the  geographic  range  of  the  species  for  this  work  in  
 brief  terms,  as  even  some  of  the  best  and  newest  taxologic  books  on  
 plants  relate  not with  sufficient  distinctness, what  is  truly  indigenous  
 and  what  merely  naturalised  in  any  particular  part  of  the  globe.  
 Furthermore  schematic  indices,  to  facilitate  general  views  over  the  
 geographic  distribution  of  plants,  such  as  given  for  Australia  in  “ a  
 systematic  census  of  plants  with  geographic  and  literary  annotations,” 
   have  not  as  yet  been  forthcoming  for  any  of  the  other  great  
 divisions  of  the  earth  with  completeness,  although  Nyman  has  published  
 a  full  list  of  European  plants with mentioning  of  the  countries  
 of their nativity  there.  The  restitution  of  some  of  the  oldest  specific  
 names  has  been  eilected  from Hooker  and  Jackson’s  Index  Kewensis.  
 To  draw  prominent  attention  to  the  primarily  important  among  the  
 very many  hundreds  of  plants,  referred  to  in  these  pages,  the  leading  
 species  have  been  designated with  an  asterisk.  I t  has  not  been  found  
 easy  in  numerous  instances,  to  trace  the  original  source  of  whatever  
 information  on  utilitarian  plants  we  find  recorded  in  the  various  
 volumes  of  phytographic  or  rural  or  technologic  lite ra tu re ;  many  
 original  observations  are  however  contained  in  the writings,  accessible  
 here,  of  Bernardin,  Bentham,  Bentley,  Boehmer,  Brandis,  Brockhaus,  
 Candolle,  Chambers,  Collins,  Drury,  Engelmann,  Engler,  Flueckiger,  
 Fraas,  Goeze,  Asa  Gray,  Grisebach, Hanbury, Hilgard,  Hooker,  Huse-  
 manu.  King,  Koch,  Krichauff,  Langethal,  Lawson,  Bindley,  Lorentz,  
 Loudon, Maiden, Martins, Masters, Meehan, Meyer, Micbaux, Molineux,  
 Naudin,  Nuttall,  Oliver,  Pereira,  Philippi,  Porcher,  Rosenthal,  Roxburgh, 
   Sargent,  Seemann,  Semler,  Simmonds,  Trimen,  Watt, Wiesner,  
 Wilkinson,  Wittstein  and  others,  to  whose  names  reference  is  cursorily  
 made  in  the  text.  The  volumes  of  the Agricultural Department 
 T 
 i 
 at  Washington,  the  Austrian  Apotheker-Verein,  the  Journal  of  
 Applied  Science,  the Bulletin  de la  Société d’Acclimatation  de France,  
 the  Gardeners’  Chronicle, the  Anales  de  la  Sociedad  rural  Argentina,  
 the Revue Agricole  of  Mauritius, the  Indian  Forester,  the  Journal  of  
 the  Society  of  Arts,  Therapeutic  Gazette,  Dyer’s  Kew  Bulletin,  
 Christy’s  New Commercial  Plants,  Progress-Reports  of  the Victorian  
 Royal  Commission  on  Vegetable  Products  edited  by  Mr.  J .   J .   Shil-  
 linglaw,  the  Garten-Flora,  the  Wiener  Garten-Zeitung,  Capetown  
 Agricultural  Journal,  the  Calcutta  Agricultural  Ledger,  Meehan’s  
 Monthly,  Erfurt  Deutsche  Gaertner-Zeitung,  Bulletins  of  the  Agricultural  
 Departments  of  Sydney,  Melbourne,  South-Australia  and  
 Western  Australia  and  several  other  periodicals  have  likewise  
 afiorded  data,  utilised  for  this  work.  B.  D.  Jackson’s  “ Vegetable  
 Technology,”  up  to  1882,  is  an  admirable  guide  to  the  vast  literature  
 in  this  direction.  The  six  volumes  by  Dr.  Watt  on  the  economic  
 products  of  India,  hitherto  issued,  have  especially  been  consulted.  
 Many  therapeutic  notes  have  been  obtained  from  the  recent works  of  
 Bartholow, Brunton,  and Phillips.  Special  praise  should  be  bestowed  
 on  the  great  Kew-establishment  for  originating  or  sustaining  the  
 culture  of  so  many  new  plants,  particularly  in  the  British  colonies.  
 In   selecting  notes  from  general  rural  literature  great  caution  had to  be  
 exercised,  to  guard  against  being  misled  by  perhaps  sometimes  
 faulty  nomenclature,  whether  phytographic  or  popular.  So  also,  in  
 choosing  or  elaborating the  data  for  entries  into  this  work,  it  had  constantly  
 to  be  kept  in  view,  th a t  the  information  is  intended  for  the  
 bread-winning  portion  of  communities  in  young  colonies  mainly  if  
 not  exclusively  ;  little  beyond  this  is  aimed  at.  Consummate  discrimination  
 had  therefore  to  be  exercised,  to  circumscribe  the  information  
 offered  in  this  plain book.  Mischief  may also be  done  by  careless  
 introductions  ;  thus  Madia  may  be  singled  out  as  an  instance  of  a  
 very  invasive  and  therefore  objectionable  weed  avoided  by  pasture-  
 animals,  although  it  continues  to  be  much  praised  up  as  an  oil-plant.  
 Indigenous  plants  of  special local  value  and  of  even  easy restoration  
 are  often  neglected  here  and  elsewhere,  instance  our  incomparable  
 Rodgum-Eucalyptus,  Sheep  Salt-Bushes,  Kangaroo-grass.  What  
 may  another  century  have  to  say  about  their  indiscriminate  annihilation  
 ?  More  rotation  of  crops may ward  off various  diseases  of plants  
 and  defertilisatlon  of fields,  and  this  without  impairment  of  remunerativeness  
 of  harvests.  Soil  analysis  should  precede  manuring  in  any  
 kinds  of  extensive  culture,  so  as  to  render  that  operation  always most  
 rational, with most of gain, least of exhaustion  and  remaining  clearness.