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  <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-15470</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15470</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Статьи</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Articles</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Calculating the numbers of the symbols of a complex</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Вычисление чисел символа комплекса</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Fedorov</surname>
            <given-names>E. S.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Федоров</surname>
              <given-names>Е. С.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Fedorov</surname>
              <given-names>E. S.</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="1913-12-01">
        <day>01</day>
        <month>12</month>
        <year>1913</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1913</year>
      </pub-date>
      <volume>4</volume>
      <issue>5</issue>
      <fpage>391</fpage>
      <lpage>396</lpage>
      <history>
        <date date-type="received" iso-8601-date="1913-06-16">
          <day>16</day>
          <month>06</month>
          <year>1913</year>
        </date>
        <date date-type="accepted" iso-8601-date="1913-08-08">
          <day>08</day>
          <month>08</month>
          <year>1913</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1913-12-01">
          <day>01</day>
          <month>12</month>
          <year>1913</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© E. S. Fedorov</copyright-statement>
        <copyright-year>1913</copyright-year>
        <copyright-holder xml:lang="ru">Е. С. Федоров</copyright-holder>
        <copyright-holder xml:lang="en">E. S. Fedorov</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/15470">https://pmi.spmi.ru/pmi/article/view/15470</self-uri>
      <abstract xml:lang="ru">
        <p>Опыт показал, что в настоящее время тех приближенных чисел, которые получаются сравнительно грубыми графическими приемами, вполне достаточно для индивидуальной характеристики каждого вещества, то есть для кристаллохимического анализа. Но по мере накопления описанных кристаллографически новых веществ, а такое накопление идет ускоренным ходом, должно когда-нибудь наступить время, что потребуется большая точность в выражении результатов измерения.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Experience has shown that at present, the approximate numbers that are obtained using relatively crude graphic techniques are quite sufficient for the individual characteristics of each substance, that is, for crystal chemical analysis. But as new crystallographically described substances accumulate, and such accumulation proceeds at an accelerated rate, the time must someday come when greater accuracy will be required in expressing the results of measurements.</p>
      </abstract>
    </article-meta>
  </front>
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      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">-</mixed-citation>
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