John Cunningham Mclennan

**John Cunningham Mclennan** (Oktoba 14, 1867 – Oktoba 9, 1935) alikuwa mwanafizikia wa Kanada. 

Alizaliwa Ingersoll, Ontario. 

Alimaliza masomo yake kwenye chuo kikuu cha Toronto mnamo mwaka 1892 na alikuwa profesa wa fizikia huko kutoka mwaka 1907 hadi 1931.

Mchango wake mkubwa kwenye fizikia ulikuwa utafiti wake kuhusu ukinzani na upitishaji wa umeme katika vipitishi mbalimbali na spektra za elementi.  

## Mandishi yake
*(yote yanapatikana kwenye archive.org)*

* Note on the temperature variations in the specific resistance of Heusler's alloys (microform), by McTaggart, H. A. (Henry Allen), 1876-1941; McLennan, J. C. (John Cunningham), 1867-1935; Robertson, J. K. (John Kellock), 1885-1958
* On the absorption spectra of thallium, aluminium, lead and tin, and arsenic (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Young, J. F. T. (John Francis Todd), 1893-1954; Ireton, H. J. C. (Henry John Cunningham), * On the radioactivity of lead and other metals (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Pound, V. E. (Vivian Ellsworth)
* On the ionisation tracks of the alpha rays in hydrogen (microform), 1916, by McLennan, J. C. (John Cunningham), 1867-1935; Mercer, H. N. (Henry Noble)
* On the permeability of thin fabrics and films to hydrogen and helium (microform), 1929, by McLennan, J. C. (John Cunningham), 1867-1935; Shaver, W. W. (William Walker)
* of potassium On the Bunsen flame spectra of metallic vapours (microform), 1916, by McLennan, J. C. (John Cunningham), 1867-1935; Thomson, Andrew, 1893-1974
* On the radioactivity of potassium and other alkali metals (microform), 1916, by McLennan, J. C. (John Cunningham), 1867-1935; Kennedy, W. T. (William Thomson), b. 1884
* On the ultra-violet spectrum of elementary silicon (microform), 1916, by McLennan, J. C. (John Cunningham), 1867-1935; Edwards, E. (Evan); Royal Society of Canada
* The radioactivity of lead (microform), 1908, by McLennan, J. C. (John Cunningham), 1867-1935
* On the electric charges acquired in high vacua by insulated potassium salts and other radio-active substances (microform), 1910 by McLennan, J. C. (John Cunningham), 1867-1935
* The production of helium from the natural gases of Canada (microform), 1920 by McLennan, J. C. (John Cunningham), 1867-1935
* On the ionisation potentials of magnesium and other metals, and on their absorption spectra (microform), 1917 by McLennan, J. C. (John Cunningham), 1867-1935
* Electric screening in vacuum tubes (microform), by McLennan, J. C. (John Cunningham), 1867-1935
* The metric system of weights and measures (microform), by McLennan, J. C. (John Cunningham), 1867-1935
* On the magnetic properties of Heusler's alloys (microform), by McLennan, J. C. (John Cunningham), 1867-1935
* Report on some sources of helium in the British empire (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Canada. Mines Branch
* On the absorption spectra of mercury, cadmium, zinc, and other metallic vapours (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Edwards, E. (Evan)
* The intensity of the earth's penetrating radiation at different altitutdes and a secondary radiation excited by it (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Macallum, E. N
* A laboratory course in experimental physics by Loudon, W. J. (William James); McLennan, J. C. (John Cunningham), 1867-1935
* On the susceptivility of mixtures of salt solutions (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Wright, C. S. (Charles Seymour), 1887-1975
* Induced radioactivity excited in air at the foot of waterfalls (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Burton, E. F. (Eli Franklin), 1879-1948
* On the radioactivity of metals generally (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Burton, E. F. (Eli Franklin), 1879-1948
* A laboratory course in experimental physics, by Loudon, W. J. (William James); McLennan, J. C. (John Cunningham), 1867-1935, joint author
* The use of the Jamin interferometer for the estimation of small amounts of helium or hydrogen in air (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Elworthy, R. T. (Reginald Thomas), b. 1890; Royal Society of Canada
* On the extreme ultra-violet spectra of magnesium and selenium (microform), by McLennan, J. C. (John Cunningham), 1867-1935; Young, J. F. T. (John Francis Todd), 1893-1954; Ireton, H. J. C. (Henry John Cunningham)

## Marejo ya nje
* Eve, A. S. (1935). "Sir John Cunningham McLennan. 1867-1935". 

Jamii:Wanafizikia wa Kanada