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Gray, P. H.
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1

Some Biometrics in Pieris and Colias (Lepidoptera: Pieridae..:

Gray, P. H. H.
Journal of the New York Entomological Society.  75 (1967)  1 - p. 12-17 , 1967
Link: https://www.jstor.org/st..
 
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2

Forms and Arrangements of Scales in Species of Colias (Lepi..:

Gray, P. H. H.
Journal of the New York Entomological Society.  69 (1961)  4 - p. 201-202 , 1961
Link: https://www.jstor.org/st..
 
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3

ASSIMILATION OF BERBERINE AND CHELIDOXANTHINE BY BACTERIA:

GRAY, P. H. H. ; LACHANCE, R. A.
Plant and Soil.  8 (1957)  4 - p. 354-366 , 1957
Link: https://www.jstor.org/st..
 
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4

Assimilation of Berberine by Bacteria:

GRAY, P. H. H. ; LACHANCE, R. A.
Nature.  177 (1956)  4521 - p. 1182-1183 , 1956
Link: https://doi.org/10.1038/..
 
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5

Use of the Warburg Respirometer to study Microbial Activity..:

CHASE, F. E. ; GRAY, P. H. H.
Nature.  171 (1953)  4350 - p. 481-481 , 1953
Link: https://doi.org/10.1038/..
 
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6

A New Method in Staining Bacteria on Microscope Slides:

GRAY, P. H. H.
Nature.  171 (1953)  4362 - p. 1030-1030 , 1953
Link: https://doi.org/10.1038/..
 
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7

Modification of a Soil Percolation Apparatus for Soils of a..:

PAYNE, T. M. B. ; GRAY, P. H. H.
Nature.  170 (1952)  4321 - p. 325-325 , 1952
Link: https://doi.org/10.1038/..
 
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8

Microbial activities in podsol soils in Eastern Canada:

Gray, P. H. H.
Antonie van Leeuwenhoek.  12 (1947)  1-4 - p. 59-64 , 1947
Link: https://doi.org/10.1007/..
 
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9

Staining of Bacteria and Certain Fungi:

GRAY, P. H. H.
Nature.  147 (1941)  3724 - p. 329-329 , 1941
Link: https://doi.org/10.1038/..
 
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10

The Numbers of Bacterial Cells in Field Soils, as Estimated..:

Thornton, H. G. ; Gray, P. H. H.
Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character.  115 (1934)  795 - p. 522-543 , 1934
Link: https://www.jstor.org/st..
 
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11

The Fluctuations of Bacterial Numbers and Nitrate Content o..:

Thornton, H. G. ; Gray, P. H. H.
Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character.  106 (1930)  746 - p. 399-417 , 1930
Link: https://www.jstor.org/st..
 
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12

SOIL BACTERIA AND FERTILITY:

Gray, P. H. H.
Science Progress in the Twentieth Century (1919-1933).  23 (1929)  91 - p. 444-456 , 1929
Link: https://www.jstor.org/st..
 
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13

The Estimation of Bacterial Numbers in Soil by Direct Count..:

GRAY, P. H. H. ; THORNTON, H. G.
Nature.  122 (1928)  3072 - p. 400-401 , 1928
Link: https://doi.org/10.1038/..
 
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14

The Formation of Indigotin from Indol by Soil Bacteria:

Gray, P. H. H.
Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character.  102 (1928)  717 - p. 263-280 , 1928
Link: https://www.jstor.org/st..
 
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15

A graphical method for optimizing fermentations:

Geysen, H. M. ; Gray, P. P.
Biotechnology and Bioengineering.  14 (1972)  5 - p. 857-860 , 1972
Link: https://doi.org/10.1002/..
 
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