IV. Seed Stocks Received

1. M. M. Rhoades, Ames, Iowa:- Stocks involving Eyster's Y₂.
2. H. K. Hayes, St. Paul, Minn.:- v₂₁ (chrom. 8). [Records Genetics Soc. Amer. No. 4, 1935. Abstract.]
3. J. H. Kempton, Washington, D.C.:- Annual teosinte from Lake Ratuna in Southern Guatemala.
4. M. T. Jenkins, Washington, D.C.:-

• la	su	Tu tu	gl3
  		tu

• Homozygous A₁ C R a₂ bt bv pr (This bt stock gives good field germination.)
• Same as above, but segregating V₂ v₂.
• Homozygous A₁ C R A₂ bt bv pr

• fr2 gl1 ij fr1	x	fr2 gl1 ij fr1
  +   +  +  fr1

• fr2 gl1 ij fr1	x	fr2 gl1 ij fr1
  fr2  +  +  +

5. W. Ralph Singleton, New Haven, Conn.:-

• Y₄ Y₄ it it
• y₄ y₄ It It
• y₄ y₄ It It x Y₄ Y₄ it it.

6. S. Horowitz, Buenos Aires, Argentina:-

• su₁ gl₃ Y x la_34a
• gl_33a
• gl_33b
• lg_34a

• r + Mr Pr	x	r g1 mr (R-tester)
  r g1 + +

• af_34a
• sn

7. Queensland Agricultural High School and College, Gatton, Australia:-

• Ten packages of seed, labeled I - X [no letter].

8. Ithaca, N. Y. Stocks grown by Maize Genetics Cooperation. Pollinations by John Shafer:

• Inbred strains. Selfed or sib-crossed ears of all the inbred strains in disease resistance test (see V, below), except C70-34, which did not germinate.
• Glossies 1, 2, 3, 4, 6, 7, 9; gl₅, no germination, gl₈ too late to ripen. Hadjinov's glossies 3, 5, 6, 7, 10 (H3 = gl₄, H6 = gl₆, H10 = gl₃, see II above); H8, all normal seedlings, supposed to be +/gl but some certainly homozygous normal.
• Hadjinov's Rs₁, rs₂, at, bd, cr₃, bs?, vb (variable brachytic).
• Perry's Yx and yx, in various combinations with Y₁ y₁, Pl pl, Al al.
• Brunson's pale yellow endosperm.
• Wiggans' brittle stalk.
• Segregating cultures from W₁ w₁ x A₁ b Pl py su.
• Plant colors:- A₁ B Pl, a₁^p B Pl, a₁ B pl, a₁ b Pl, a₁ b pl.
• Tester stocks:-
• Group 1. - P-p f₁ bm₂, P-p br f₁ bm₂, P-p br f₁ an₁, p sr an₁ bm₂, P-p gs₁ bm₂, p as.
• Group 2. - lg₁ gl₂ B b v₄, lg₁ gl₂ ts₁, sb, al.
• Group 3. - a₁ na₁ ts₄, d₁^s, d₁^m, a Rg.
• Group 4. - la su Tu tu gl₃.
• Group 5. - ys₁ bm₁ pr₁ v₂, A₂ a₂ bt bv pr₁, bm₁ bt pr₁, bv pr₁ v₂.
• Group 6. - Y₁ Pl sm py, Y₁ pl (zg₃?), po y.
• Group 7. - v₅ ra₁ gl₁, ra₁ gl₁ ij, v₅ gl₁ Bu₁.
• Group 8. - j₁, ms₈.
• Group 9. - c sh wx v₁, yg₂ c sh wx.
• Group 10.- nl₁ g₁ R, r zb₅, d₇, li g₁ Rr.
• Multiple testers:-
• ts₂ bm₂ lg₁ b su₁ A₁ na₁ cr₁ pr₁ y₁ pl in j₁ C R^g.
• bm₂ lg₁ b A₁ su₁ pr₁ y₁ pl In Bn₁ j₁ c R^g.
• P^vv A₁ su pr₁ y₁ in c sh wx R^g.
• A₁ A₂ Pr pr C-sh-wx g₁R-r.
• A₁ A₂ B-lg₁ Y-y-Pl Su-su-Tu-tu.

Other stocks previously listed are, for the most part, still available.

New seed stocks listed under general news items (II) in this letter but which have not been sent for the Cooperation collection, should be received as long as possible before planting time (May 15).