Chemical Engineering

Volume, Title, and Unique Books data collected on June 27, 2001.
Circulation statistics for the ALC fiscal year ending May 31, 2001.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Chemical Engineering. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909			1	2		3
1910-1919	2		1			3
1920-1929	24		5	2	1	32
1930-1939	12		3		1	16
1940-1949	44	3	18	15	6	86
1950-1959	70	5	14	20	5	114
1960-1969	52	39	25	25	20	161
1970-1974	20	15	17	21	18	91
1975-1979	56	18	11	5	4	94
1980-1984	29	11	4	16	6	66
1985-1989	16	11	18	15	3	63
1990-1994	27	9	14	4	8	62
1995	3	4	2		1	10
1996	6	4	1	1	2	14
1997	6	7	3	1		17
1998	1	5	2			8
1999	2	8		1		11
2000	2	8			1	11
2001		3				3
2002
Totals	372	150	139	128	76	865
Average Age	1965	1979	1968	1967	1971	1969
Percent of Collection	0.18%	0.08%	0.10%	0.10%	0.11%	0.12%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Chemical Engineering. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909			1	1		2
1910-1919	1		1			2
1920-1929	16		5	2	1	24
1930-1939	10		3		1	14
1940-1949	41	2	12	9	6	63
1950-1959	61	5	13	9	5	80
1960-1969	47	16	22	21	20	107
1970-1974	20	14	17	20	18	74
1975-1979	26	17	11	5	4	58
1980-1984	28	11	4	16	6	62
1985-1989	16	9	18	15	3	49
1990-1994	23	9	14	4	8	56
1995	3	4	2		1	10
1996	6	4	1	1	2	14
1997	6	6	3	1		16
1998	1	4	2			7
1999	1	7		1		9
2000	2	8			1	10
2001		2				2
2002
Totals	308	118	129	105	76	659
Average Age	1965	1982	1969	1971	1971	1970
Percent of Collection	0.17%	0.09%	0.11%	0.09%	0.13%	0.13%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Chemical Engineering. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1600-1699
1700-1799
1800-1899
1900-1909			1
1910-1919			1
1920-1929	13		5	1	1
1930-1939	8		3		1
1940-1949	34		8	4	5
1950-1959	41	2	7	3	2
1960-1969	40	13	7	10	6
1970-1974	16	10	6	11	9
1975-1979	21	15	9	4	1
1980-1984	26	10	2	11	6
1985-1989	9	4	11	11	1
1990-1994	19	8	12	3	6
1995	3	3	1		1
1996	6	4		1	2
1997	6	5	3	1
1998	1	3	2
1999		6
2000	1	8
2001		1
2002
Totals	244	92	78	60	41
Average Age	1966	1984	1969	1974	1971

Total Circulation

A count of charges and renewals for Chemical Engineering. This count only includes circulation of bound monographs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	2	6	1	0	0	0	9
APL Items	9	144	1	5	1	0	160
HSU Items	0	1	8	0	0	0	9
McM Items	2	1	1	8	0	0	12
HPU Items	0	0	0	0	0	7	7
Totals	13	152	11	13	1	7	197

Circulation by Item Age

A count of charges and renewals for Chemical Engineering, broken down by item age and item owner. This count only includes circulation of bound monographs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909
1910-1919
1920-1929	1					1
1930-1939
1940-1949	1			2		3
1950-1959				2		2
1960-1969	3	1	4		1	9
1970-1974		8	1	2	1	12
1975-1979	1	15	1			17
1980-1984		3	1		1	5
1985-1989		18	1	2	1	22
1990-1994	1	5	1	1		8
1995		7				7
1996	1	8		2	2	13
1997		39		1		40
1998		33				33
1999		13				13
2000	1	8			1	10
2001		2				2
2002
Totals	9	160	9	12	7	197
Percent of Circulation	0.02%	0.05%	0.04%	0.10%	0.10%	0.04%

Non-Circulating Use

A count of Non-Circulating usage for Chemical Engineering (as recorded by the circulation "NC" command). This count only includes bound monographs.

ACU	APL	HSU	McM	HPU
1	0	6	1	0

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