69 
than  1  to 3. -To-day  I  saw  a  large  goitre  of 
old  standing,  acquired  in  Propriá  where  no 
other  case  was  known. 
14  —  15  X.  These  days  were  spent  in  wor¬ 
king  at  the  laboratory,  preparing  the  journey 
and  taking  leave. 
16  X.  We  travelled  by  train  to  Bahia 
and  spent  the  night  in  Timbó. 
17  X.  Before  leaving,  we  collected  many 
adult  PL  oliváceas  in  a  small  pond  near  to 
the  station.  Then  we  continued  our  journey 
through  a  region  where  PL  olivaceus  is 
found,  and  collected  some  specimens  in  Ala- 
goinhas  where  according  to  Dr.  MAURILIO 
PINTO,  the  shell  is  common.  At  night  we 
arrived  in  Bahia. 
18  X.  We  established  our  laboratory  in 
the  house  of  the  Capitão  do  Porto,  kindly 
offered  to  us. 
19  X.  We  collected  large  PL  oliváceas 
in  the  Tanque  da  Conceição  ;  they  only  con¬ 
tained  a  Cercaria  with  unforked  tail,  and  many 
cysts  of  Schisostomum. 
20  X.  Excursion  to  the  Lagoa  da  Ama- 
ralinha  where  we  found  only  PL  nigri¬ 
cans  LUTZ. 
21  X.  We  examined  the  waterworks  in 
Queimadas  and  Cabulla  without  finding  any 
shells.  We  collected  larvae  and  nymphae  of 
Simu/ium  brevibranchium,  a  species  charac- 
¡eristical  of  the  State  of  Bahia. 
22  X.  We  worked  at  the  laboratory. 
23  X.  We  made  a  journey  to  Cachoeira, 
where  we  collected  many  Planorbis  in  the 
river  Catinga.  They  seemed  to  be  small 
oliváceas  and  contained  the  cercaria  of  Sch. 
Mansoni  and  another  with  unforked  tail. 
24  X.  In  the  morning,  we  explored  the 
river  Paraguassii  but  found  no  Planorbis.  In 
the  rapids  there  grew  a  Podostemonacea  with 
many  larvae  and  nymphae  of  Simalium  or¬ 
bitale.  In  the  afternoon  we  took  the  train  to 
Feira  de  Sant’ Anna. 
25  X.  In  a  well  near  the  town,  we 
found  many  specimens  of  Physa  and,  in  a 
large  pond,  adult  PL  olivaceus ,  infected  with 
Sch.  mansoni.  While  examining  several  pools 
which  were  almost  dry  and  very  much  ex¬ 
posed  to  sunrays,  we  found  empty  shells 
of  the  same  species  and  very  few  li¬ 
ving  specimens,  all  of  them  small. 
26  X.  Return-journey  to  Bahia. 
27  X.  Excursion  to  the  island  of  Itapa- 
rica.  In  the  Lagoa  Grande  we  found  a  few 
Planorbis  and  close  by,  several  Tabanidae 
and  many  ticks.  On  account  of  the  heavy  sea 
we  spent  the  night  on  the  island. 
29  X.  We  returned  early  and  found  that 
there  was  no  accomodation  in  the  Lloyd 
steamer,  so  we  resolved  to  embark  on 
the  Itaquera.  We  hurried  our  preparations 
and  leave  taking  and  went  on  boaid  under 
torrential  rain. 
30  X.  Heavy  storm  at  sea. 
31  X.  The  weather  improved. 
1  XL  We  stopped  a  short  time  only,  in 
Victoria. 
2  XL  We  cast  anchor  in  the  harbour  of 
Rio  de  Janeiro  at  9.30  a.  m. — 
The  following  chapters  are  written  by 
Dr.  OSWINO  PENNA  : 
On  the  frequency  of  Schistosomum  Man¬ 
soni  in  the  visited  States  as  shown  by 
macroscopical  examination. 
“During  our  journey  we  took  notes  of 
312  coprological  examinations.  There  were  a 
good  many  others,  of  which,  for  various  rea¬ 
sons,  we  took  no  notes.  We  give  the  results 
by  order  of  the  States  in  which  they  where 
made. 
Rio  Grande  do  Norte. 
At  Natal,  we  examined  specimens  from 
25  pupils  of  the  School  of  Marine  Appren¬ 
tices,  as  regards  eggs  of  Schistosomum  man¬ 
soni.  At  the  General  Hospital  we  examined 
specimens  from  19  individuals,  obtaining  3 
positive  results  ;  these  patients  had  come  from 
the  place  called  Boacica,  where,  as  we  were 
told,  there  is  a  pond  containing  Planorbis. 
Parahyba. 
We  examined  specimens  from  25 
pupils  of  the  Marine  School  finding 
eggs  of  Schistosomum  in  3  of  them.  Out  of 
32  patients  of  the  Sta.  Isabel  Hospital  there 
