File:Interstate medical journal (1917) (14781368484).jpg

Identifier: interstatemedica2419unse (find matches)
Title: Interstate medical journal
Year: 1917 (1910s)
Authors:
Subjects: Medicine
Publisher: St. Louis, : Interstate Medical Journal
Contributing Library: The College of Physicians of Philadelphia Historical Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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mbrosiacetr group. ing hay fever except on direct inhalation, resemble the Ambrosiaceaegroup biologically and morphologically. The second group (Gvaminese) includes practically all the mem-bers of the grass family (Fig. 2), including the cultivated cereals,such as rye, wheat, and corn. From the standpoint of pollentherapy, this is fortunate, as there are nearly 5,000 species ofgrasses. The wormwood (Artemisia) group is composed of about 200species. Our investigations have shown that these represent the 490 INTERSTATE MEDICAL JOURNAL important factor in hay fever in the Pacific and Rocky Mountainstates. The pollen of all the species bear a close resemblance, notonly microscopically (Fig. 3), but also in their hay fever reaction,which is ten times more active than that of the common ragweed(Ambrosia elatior). The chenopodium (Chenopodiaceas) group includes the chenopods(Chenopodiums), careless weeds (Amaranthus, Fig. 4), docks(Rumex), and water hemp (Acnidas). This group is of minor im-
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Fig. 2.—Pollen of June grass (Foa annua). Magnified 500 diameters. Size 22microns. Principal cause of vernal hay fever. Characteristic in reaction andappearance of the Grumineiv group. The pollen of the group vary in sizefrom 20 microns to 80 microns (corn pollen). portance compared with the others, not only on account of theless active hay fever reaction, but also on account of its more re-stricted geographical distribution. PRACTICAL APPLICATION OF THE HAY FEVER GROUPS. If a patient is found sensitive to the pollen of the foxtail grass(Chsetochloa glauca), our investigations have shown that he willalso react to the pollen of other members of this group. The ex- Scheppegrell: Notes on the Treatment of Hay Fever 491 tract may, therefore, be prepared from the foxtail grass (Chseto-chloa glauca), timothy (Phleum pratense), rye, or other membersof this group, or a combination of several of these. In the same, manner, if the patient is sensitive and exposed tothe common ragweed, he may

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