﻿CONTENTS 
  

   Originai, 
  Papers 
  

  

  Page 
  

  

  Oceanography 
  . 
  — 
  The 
  applications 
  of 
  science 
  and 
  engineering 
  in 
  the 
  work 
  of 
  the 
  United 
  

  

  States 
  Lighthouse 
  Service. 
  George 
  R. 
  Putnam 
  279 
  

  

  Crystallography. 
  — 
  Crystallographic 
  -optical 
  properties 
  of 
  calcium 
  fumarate 
  and 
  

  

  maleate. 
  Edgar 
  T. 
  Wherry 
  and 
  Raymond 
  M. 
  Hann 
  288 
  

  

  Proceedings 
  

   Biological 
  Society 
  290 
  

  

  OFFICERS 
  OF 
  THE 
  ACADEMY 
  

   President: 
  W. 
  J. 
  Humphreys, 
  Weather 
  Bureau. 
  

   Corresponding 
  Secretary: 
  Francis 
  B. 
  Silsbee, 
  Bureau 
  of 
  vStandards. 
  

   Recording 
  Secretary: 
  William 
  R. 
  Maxon, 
  National 
  Museum. 
  

   Treasurer: 
  R. 
  L. 
  Faris, 
  Coast 
  and 
  Geodetic 
  Survey. 
  

  

  