<?xml version="1.0" encoding="UTF-8"?>
<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" dtd-version="1.4" article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15107</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15107</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Some new devices and techniques of the universal optical research method</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Некоторые новые приборы и приемы универсально-оптического метода исследования</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Nikitin</surname>
            <given-names>V. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Никитин</surname>
              <given-names>В. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Nikitin</surname>
              <given-names>V. V.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1907-12-01">
        <day>01</day>
        <month>12</month>
        <year>1907</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1907</year>
      </pub-date>
      <volume>1</volume>
      <issue>1</issue>
      <fpage>43</fpage>
      <lpage>51</lpage>
      <history>
        <date date-type="received" iso-8601-date="1907-06-06">
          <day>06</day>
          <month>06</month>
          <year>1907</year>
        </date>
        <date date-type="accepted" iso-8601-date="1907-08-29">
          <day>29</day>
          <month>08</month>
          <year>1907</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1907-12-01">
          <day>01</day>
          <month>12</month>
          <year>1907</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© V. V. Nikitin</copyright-statement>
        <copyright-year>1907</copyright-year>
        <copyright-holder xml:lang="ru">В. В. Никитин</copyright-holder>
        <copyright-holder xml:lang="en">V. V. Nikitin</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15107">https://pmi.spmi.ru/pmi/article/view/15107</self-uri>
      <abstract xml:lang="ru">
        <p>Задачей настоящей краткой заметки является опубликование нескольких новых приспособлений и приемов, введенных мной при работах по универсально-оптическому (в просторечье Федоровскому) методу микроскопических исследований и получивших уже некоторые права гражданства среди лиц, работающих по этому методу: 1) Сегменты в металлической оправе. 2) Вращающийся компаратор. 3) Измерение толщины шлифа по трещинам и включениям в нем с помощью наклонения препарата. 4) Полусфера для графических решений вопросов универсально-оптического метода исследования.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The purpose of this short note is to publish several new devices and techniques that I introduced during my work on the universal optical (in common speech Fedorovsky) method of microscopic research and which have been already recognized by persons who use this method in their work: 1) segments in a metal frame; 2) rotating comparator; 3) measuring the thickness of a thin section using cracks and inclusions in it by tilting the specimen; 4) hemisphere for graphic solutions to problems of the universal optical research method.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list>
      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">Zeitschrift für Krystallographie XXXIII B. 2 Heft. S. 145. 1900.</mixed-citation>
        <mixed-citation xml:lang="en">Zeitschrift fur Krystallographie XXXIII B. 2 Heft. S. 145. 1900</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
