﻿22 
  S. 
  A. 
  TULLBERG, 
  GRAPTOLITES 
  DESCRIBED 
  BY 
  HISINGER. 
  

  

  ScHiMPEK, 
  in 
  Traité 
  de 
  paléoDtologie 
  végétale, 
  1869, 
  p. 
  183, 
  

   partakes 
  of 
  Göppeet's 
  opinion; 
  but 
  in 
  Zittel's 
  and 
  Schimper's 
  

   »Handbuch 
  der 
  Palaeontologie» 
  Dictyonema 
  is 
  placed 
  amongst 
  

   the 
  Graptolites. 
  

  

  HisiNGER 
  entitles 
  a 
  fossil 
  figured 
  in 
  Supplementum 
  2, 
  pl. 
  

   37, 
  fig. 
  5: 
  y>Prionotus 
  gigantens?» 
  The 
  original 
  of 
  the 
  figure 
  is 
  

   to 
  be 
  seen 
  in 
  Hisinger's 
  coUection. 
  It 
  is 
  certainly 
  not 
  a 
  Grap- 
  

   tolite. 
  It 
  resembles 
  nothing 
  raore 
  than 
  the 
  impression 
  made 
  

   by 
  an 
  Orthoceratite. 
  

  

  Additions. 
  

  

  To 
  page 
  7. 
  In 
  the 
  library 
  of 
  the 
  Roy. 
  Academy 
  of 
  

   Sciences 
  at 
  Stockholm 
  I 
  have 
  lately 
  seen 
  a 
  letter 
  from 
  Prof. 
  

   S. 
  Nilsson 
  to 
  Hisinger, 
  dated 
  27 
  Dec. 
  1835 
  in 
  which 
  he 
  

   writes: 
  »1 
  have 
  named 
  the 
  genns 
  of 
  Graptolites 
  Prionotus 
  

   (öf 
  TiQinvonng 
  like 
  a 
  saw) 
  as 
  well 
  in 
  my 
  annotations, 
  where 
  

   a 
  sketch 
  of 
  a 
  monograph 
  on 
  this 
  genus 
  is 
  to 
  be 
  found, 
  

   as 
  in 
  letters 
  to 
  several 
  foreigners. 
  I 
  must 
  complain 
  that 
  

   I 
  through 
  a 
  slip 
  of 
  memory 
  once 
  when 
  visiting 
  you 
  in 
  Stock- 
  

   holm 
  gave 
  the 
  name 
  wrongly." 
  (Probably 
  Priodon). 
  »The 
  name 
  

   Prionotus 
  I 
  consider 
  characteristic 
  and 
  I 
  therefore 
  intend 
  to 
  re- 
  

   tain 
  it». 
  (»Graptolithslägtet 
  har 
  jag 
  kallat 
  Prionotus 
  dS 
  TrgiovcoTog 
  

   (lik 
  en 
  såg) 
  såväl 
  i 
  mina 
  anteckningar, 
  der 
  ett 
  utkast 
  finnes 
  

   till 
  en 
  monographie 
  öfver 
  detta 
  slägtet, 
  som 
  ock 
  i 
  bref 
  till 
  

   flere 
  utländningar 
  . 
  .. 
  Beklagligen 
  har 
  jag 
  genom 
  ett 
  minnes- 
  

   fel 
  kommit 
  vid 
  ett 
  besök 
  en 
  gång 
  hos 
  Herr 
  Brukspatronen 
  

   i 
  Stockholm 
  att 
  uppgifva 
  namnet 
  oriktigt, 
  hvilket 
  då 
  Herr 
  

   Br. 
  upptecknade. 
  Namnet 
  Prionotus 
  anser 
  jag 
  vara 
  karak- 
  

   teristiskt, 
  hvarför 
  jag 
  ämnar 
  bibehålla 
  det».) 
  

  

  I 
  cannot 
  conclude 
  these 
  pages 
  without 
  expressing 
  my 
  

   deeply 
  felt 
  gratitude 
  to 
  Prof. 
  Chas. 
  Lapworth 
  of 
  Birmingham^ 
  

   to 
  whom 
  I 
  ara 
  under 
  great 
  obligation 
  for 
  his 
  kind 
  and 
  effec- 
  

   tive 
  assistance 
  in 
  revising 
  this 
  paper 
  when 
  printing. 
  

  

  