﻿516 
  Scientific 
  Intelligence. 
  

  

  6. 
  Geological 
  facts 
  on 
  Grand 
  River, 
  Labrador 
  ; 
  by 
  Austin 
  

   Gary. 
  The 
  following 
  note 
  is 
  to 
  be 
  added 
  to 
  the 
  sentence 
  on 
  p. 
  

   421 
  (line 
  14 
  from 
  top) 
  in 
  the 
  November 
  number. 
  

  

  " 
  Our 
  measurements 
  proving 
  worthless 
  on 
  account 
  of 
  the 
  diffi- 
  

   culties 
  under 
  which 
  they 
  were 
  taken, 
  the 
  smallest 
  estimate 
  made 
  

   by 
  the 
  party 
  on 
  the 
  spot 
  was 
  given. 
  A 
  measurement 
  since 
  made 
  

   by 
  Mr. 
  Henry 
  G. 
  Bryant, 
  of 
  Philadelphia, 
  makes 
  the 
  height 
  of 
  

   the 
  fall 
  316 
  feet, 
  from 
  which 
  the 
  height 
  of 
  the 
  basin 
  wall 
  will 
  not 
  

   much 
  vary." 
  

  

  The 
  adjective 
  "gneissic" 
  in 
  line 
  14 
  of 
  p. 
  420 
  should 
  be 
  erased, 
  

   as 
  the 
  nature 
  of 
  the 
  rock 
  was 
  not 
  positively 
  determined. 
  

  

  7. 
  Index 
  to 
  the 
  known 
  Fossil 
  Insects 
  of 
  the 
  World, 
  including 
  

   Myriapods 
  and 
  Arachnids 
  ; 
  by 
  S. 
  H. 
  Scuddek. 
  Bull. 
  U. 
  S. 
  

   Geol. 
  Surv., 
  No. 
  71. 
  744 
  pp. 
  Washington, 
  1891. 
  — 
  Contains 
  exact 
  

   references, 
  arranged 
  chronologically 
  under 
  each 
  species, 
  to 
  all 
  the 
  

   scientific 
  publications 
  where 
  fossil 
  insects 
  are 
  described 
  and 
  

   figured, 
  with 
  the 
  locality 
  and 
  horizon 
  of 
  each. 
  The 
  catalogue 
  is 
  

   divided 
  into 
  the 
  sections, 
  Paleozoic, 
  Mesozoic, 
  and 
  Cenozoic, 
  and 
  

   the 
  classes 
  and 
  species 
  appear 
  alphabetically 
  under 
  the 
  various 
  

   orders. 
  An 
  index 
  of 
  generic 
  names 
  completes 
  the 
  work. 
  

  

  8. 
  Stones 
  for 
  Building 
  and 
  Decoration 
  ; 
  by 
  George 
  P. 
  

   Merrill. 
  453 
  pp., 
  8vo. 
  New 
  York, 
  1891. 
  (John 
  Wiley 
  & 
  

   Sons). 
  — 
  There 
  are 
  few 
  subjects 
  of 
  more 
  general 
  interest 
  and 
  

   about 
  which 
  it 
  is 
  at 
  the 
  same 
  time 
  more 
  difficult 
  to 
  obtain 
  precise 
  

   scientific 
  information 
  than 
  that 
  of 
  Building 
  Stones. 
  Mr. 
  Merrill's 
  

   excellent 
  volume, 
  therefore, 
  fills 
  an 
  important 
  gap 
  and 
  should 
  be 
  

   highly 
  valued 
  by 
  a 
  wide 
  range 
  of 
  readers. 
  The 
  book 
  is 
  divided 
  

   into 
  four 
  parts 
  of 
  which 
  the 
  first 
  gives 
  a 
  concise 
  account 
  of 
  the 
  

   minerals 
  entering 
  into 
  building 
  stones, 
  the 
  physical 
  and 
  chemical 
  

   properties 
  of 
  the 
  stones 
  and 
  their 
  distribution 
  in 
  the 
  United 
  

   States. 
  The 
  second 
  part, 
  comprising 
  the 
  greater 
  part 
  of 
  the 
  

   volume 
  (pp. 
  45-312), 
  takes 
  up 
  in 
  succession 
  the 
  various 
  kinds 
  of 
  

   rocks 
  and 
  gives 
  an 
  account 
  of 
  the 
  prominent 
  quarries 
  and 
  quarry 
  

   regions 
  in 
  the 
  successive 
  states 
  arranged 
  alphabetically 
  with 
  brief 
  

   remarks 
  upon 
  those 
  of 
  abroad. 
  The 
  other 
  parts 
  give 
  the 
  methods 
  

   of 
  quarrying 
  and 
  dressing 
  stone, 
  the 
  machines 
  employed, 
  a 
  dis- 
  

   cussion 
  of 
  the 
  effect 
  of 
  weathering, 
  and 
  so 
  on 
  ; 
  also 
  appendices 
  

   presenting 
  in 
  tabular 
  form 
  the 
  physical 
  and 
  chemical 
  characters 
  

   of 
  the 
  stones 
  in 
  use, 
  prices, 
  etc. 
  The 
  book 
  is 
  well 
  illustrated 
  and 
  

   the 
  whole 
  forms 
  a 
  more 
  than 
  usual 
  attractive 
  and 
  interesting 
  

   volume. 
  

  

  9. 
  Manganese 
  ; 
  its 
  roses, 
  ores 
  and 
  deposits 
  ; 
  by 
  R. 
  A. 
  F. 
  Pen- 
  

   rose, 
  Jr. 
  642 
  pp., 
  8vo. 
  Little 
  Rock, 
  1891, 
  being 
  vol. 
  I 
  of 
  the 
  

   Annual 
  Report 
  of 
  the 
  Geological 
  Survey 
  of 
  Arkansas 
  for 
  1890, 
  

   J. 
  C. 
  Branner, 
  State 
  Geologist. 
  — 
  The 
  subject 
  of 
  manganese 
  has 
  

   received 
  exhaustive 
  treatment 
  by 
  Dr. 
  Penrose. 
  The 
  volume 
  has 
  

   a 
  wide 
  scope 
  and 
  covers, 
  first, 
  a 
  discussion 
  of 
  the 
  nature 
  of 
  early 
  

   uses 
  of 
  manganese 
  ; 
  second, 
  the 
  modern 
  uses 
  of 
  manganese 
  ; 
  

   third, 
  the 
  manganese 
  industry 
  in 
  this 
  country 
  and 
  Canada 
  ; 
  

   fourth, 
  a 
  general 
  account 
  of 
  the 
  ores 
  of 
  manganese 
  and 
  fifth, 
  

  

  